AAmericaExperiences

US attraction reservation rules and booking windows

The single most consequential planning fact about a major US attraction is whether you can simply turn up. That fact sits on 59 different official pages, each phrased differently, and it changed at several national parks for 2026. This page holds all 42 rows in one place, with the booking window stated only where the managing agency actually publishes one.

Attractions tracked
42
Primary sources cited
59
Reservation required, or required in season
31
Publish no booking window
23
No reservation needed at all
5
Last verification sweep

23 of 42 venues never state how far ahead their calendar opens. Nothing on this page is estimated: where the window is not published, the table says so rather than repeating a figure from another publisher.

The 5 findings that matter

  1. Finding 1

    Three headline national parks dropped advance reservations for 2026. Arches states plainly that timed-entry reservations will not be required; Glacier says vehicle reservations will not be required and is piloting a ticketed shuttle and limited Logan Pass parking instead; Yosemite announced it will no longer use a timed reservation system.

    Primary source

  2. Finding 2

    Most privately operated attractions publish no booking window at all. They sell rolling dated tickets without stating how far ahead the calendar opens, which is why every third-party “book X days ahead” instruction for these venues is invented rather than sourced.

    Primary source

  3. Finding 3

    Where a window is published, it ranges from six months to two days. The 9/11 Memorial Museum sells six months out; the Getty releases new dates daily up to six weeks ahead; Vizcaya opens two to four weeks ahead; and 70% of Acadia's Cadillac Summit Road slots are held back until two days before.

    Primary source

  4. Finding 4

    Reservation and admission are usually two separate things. A Rocky Mountain timed-entry reservation is not an entrance pass, a Carlsbad Caverns reservation only picks an entry time with admission still paid on arrival, and a Muir Woods booking is for parking rather than entry.

    Primary source

  5. Finding 5

    At several parks the reservation applies only inside a band of hours. Rocky Mountain requires one between 9 a.m. and 2 p.m. and nothing outside it; Haleakalā only for the 3 a.m.–7 a.m. sunrise period; Acadia only for the Cadillac Summit Road, not the park.

    Primary source

The full table — 42 attractions

Each row links to the page the rule came from, so you can verify it before you rely on it.

  • Arches National Park — park entry

    Moab, Utah · National Park Service

    Reservation
    Not required
    No advance timed-entry reservation in 2026. The NPS trip-planning page states plainly: “In 2026, advanced timed-entry reservations will not be required at Arches.”
    When the rule applies
    All of 2026
    Booking window
    Nothing to book
    Same-day or next-day
    Yes — drive-up entry, entrance fee paid at the gate
    Does a pass cover it?
    An America the Beautiful pass covers entry; there is no time slot to override

    Arches ran a timed-entry pilot in earlier seasons, and most third-party guides still describe it as current. It is not in force for 2026.

    NPS — Arches: Plan Your VisitNPS — Arches: Fees & Passes

    Verified

  • Glacier National Park — vehicle reservations

    West Glacier, Montana · National Park Service

    Reservation
    Not required
    “Vehicle reservations will not be required in 2026.” The park is instead piloting a ticketed-only shuttle system and three-hour limited timed parking at Logan Pass.
    When the rule applies
    All of 2026
    Booking window
    Nothing to book
    Same-day or next-day
    Yes for park entry; Logan Pass parking is capped at three hours
    Does a pass cover it?
    Entrance pass covers entry; the Logan Pass shuttle is separately ticketed

    The change is to how Logan Pass is accessed, not a removal of all controls: the shuttle is ticket-only and Logan Pass parking is time-limited.

    NPS — Glacier: Vehicle Reservations in 2026

    Verified

  • Yosemite National Park — park entry

    Yosemite, California · National Park Service

    Reservation
    Not required
    Yosemite announced it will no longer use a timed reservation system in 2026, ending the temporary peak-hours system used in the previous season.
    When the rule applies
    All of 2026
    Booking window
    Nothing to book
    Same-day or next-day
    Yes — drive-up entry
    Does a pass cover it?
    Entrance pass or fee covers entry; there is no time slot

    Wilderness and Half Dome permits are unaffected and still required — the change is only to general park entry.

    NPS — Yosemite: Reservations

    Verified

  • Rocky Mountain National Park — Timed Entry

    Estes Park, Colorado · National Park Service

    Reservation
    Required in season
    Timed-entry reservation required to enter the park between 9 a.m. and 2 p.m. One reservation per vehicle per day, valid for a designated two-hour arrival window.
    When the rule applies
    9 a.m.–2 p.m. daily, 22 May – 12 October 2026
    Booking window
    Released month by month, not on a rolling horizon: 1 May for 22 May–30 June, then the 1st of each month for the following month
    8 a.m. MDT on each release date
    Same-day or next-day
    Yes — additional reservations for the next day are released daily at 7 p.m. MT; entry before 9 a.m. or after 2 p.m. needs no reservation
    Does a pass cover it?
    A reservation is not an entrance pass and an entrance pass is not a reservation — inside the hours you need both

    The single most-missed detail: entering before 9 a.m. or after 2 p.m. requires no reservation at all. Reservation fee is $2 on Recreation.gov.

    NPS — Rocky Mountain: Timed Entry Permit SystemNPS — Rocky Mountain: 2026 timed entry announcement

    Verified

  • Rocky Mountain National Park — Timed Entry + Bear Lake Road

    Estes Park, Colorado · National Park Service

    Reservation
    Required in season
    A separate, scarcer reservation type covering the Bear Lake Road corridor as well as the rest of the park.
    When the rule applies
    5 a.m.–6 p.m. daily, 22 May – 18 October 2026
    Booking window
    Same monthly cadence as standard Timed Entry — 1 May, then the 1st of each month
    8 a.m. MDT on each release date
    Same-day or next-day
    Yes — next-day releases at 7 p.m. MT; the corridor is open with no reservation before 5 a.m. or after 6 p.m.
    Does a pass cover it?
    Entrance pass still required in addition to the reservation

    You must enter the Bear Lake Road corridor inside your two-hour window; arriving late means returning after 6 p.m.

    NPS — Rocky Mountain: Timed Entry Permit System

    Verified

  • Haleakalā National Park — summit sunrise

    Maui, Hawaii · National Park Service

    Reservation
    Required
    A sunrise reservation is required for every vehicle entering the summit district between 3 a.m. and 7 a.m., year-round.
    When the rule applies
    3 a.m.–7 a.m. daily, year-round
    Booking window
    Up to 60 days ahead on Recreation.gov
    Same-day or next-day
    Partial — a portion of each day's reservations is released 48 hours (2 days) in advance
    Does a pass cover it?
    Entrance fee or pass is separate; the reservation only secures the sunrise time band

    One sunrise reservation per visitor per three-day period. Sunset and daytime visits need no reservation.

    NPS — Haleakalā: SunriseNPS — Haleakalā: sunrise reservations FAQ

    Verified

  • Acadia National Park — Cadillac Summit Road

    Bar Harbor, Maine · National Park Service

    Reservation
    Required in season
    A vehicle reservation is required to drive Cadillac Summit Road. Sunrise and Daytime reservations are sold separately.
    When the rule applies
    20 May – 25 October 2026
    Booking window
    Split release: 30% of slots 90 days ahead, the remaining 70% just 2 days ahead
    10 a.m. ET for both the 90-day and the 2-day release
    Same-day or next-day
    No same-day sales, but the large 2-day release is the realistic route for most visitors
    Does a pass cover it?
    Park entrance pass is required in addition to the vehicle reservation

    Sunrise reservations carry a 90-minute entry window; daytime reservations only 30 minutes. The 70/30 split is the field most guides omit.

    NPS — Acadia: Cadillac Summit Road Vehicle Reservations

    Verified

  • Zion National Park — Angels Landing permit

    Springdale, Utah · National Park Service

    Reservation
    Required
    A permit is required to hike past Scout Lookout to Angels Landing, issued only by lottery. There is no first-come-first-served option.
    When the rule applies
    Year-round
    Booking window
    Seasonal lottery opens roughly two months before each three-month hiking block (e.g. 1 July for 1 Sept – 30 Nov), plus a day-before lottery
    Seasonal lottery opens 8 a.m. MT on the stated date
    Same-day or next-day
    No — but a separate day-before lottery runs for next-day permits
    Does a pass cover it?
    Park entrance pass does not include the permit

    Applying is not obtaining: the lottery is an application with a fee, and success rates in peak season are low.

    NPS — Zion: Angels Landing Hiking PermitsRecreation.gov — Angels Landing Permit Lottery

    Verified

  • Yosemite National Park — Half Dome cables

    Yosemite, California · National Park Service

    Reservation
    Required
    A permit is required seven days a week whenever the cables are up. Two routes exist: a preseason lottery and a daily lottery.
    When the rule applies
    While the cables are up — roughly late May to mid-October
    Booking window
    Preseason lottery in March with results in April; daily lottery applications open two days before the hike date
    Same-day or next-day
    No — the earliest route is the daily lottery, two days ahead
    Does a pass cover it?
    Park entrance pass does not include the permit

    Unaffected by Yosemite dropping general park-entry reservations for 2026.

    NPS — Yosemite: Half Dome PermitsRecreation.gov — Half Dome Permits

    Verified

  • Carlsbad Caverns National Park — cave entry

    Carlsbad, New Mexico · National Park Service

    Reservation
    Required
    The NPS permits page is headed “Timed Entry Tickets Required to Enter Carlsbad Cavern”, and notes the reservation selects your entry time only — the entrance ticket is still bought at the visitor center on arrival.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Not stated on the official page
    Does a pass cover it?
    The reservation is a time slot, not admission; entrance fee is paid separately on arrival

    The same NPS page also calls reservations “strongly recommended”, so the official wording is internally inconsistent. Treat a reservation as necessary and expect to pay admission at the visitor center.

    NPS — Carlsbad Caverns: Permits & ReservationsRecreation.gov — Carlsbad Caverns tours

    Verified

  • Mesa Verde National Park — cliff dwelling tours

    Mesa Verde, Colorado · National Park Service

    Reservation
    Required
    Entering any cliff dwelling except Step House at Wetherill Mesa requires a ticketed, ranger-led tour.
    When the rule applies
    2026 tour season: 4 May – 21 October
    Booking window
    Not published by the official source
    Same-day or next-day
    Not stated on the official page
    Does a pass cover it?
    Entrance pass covers the park, not the ranger-led tour ticket

    Step House is the only cliff dwelling enterable without a tour ticket.

    NPS — Mesa Verde: Cliff Dwelling Tours

    Verified

  • Shenandoah National Park — Old Rag day-use ticket

    Shenandoah, Virginia · National Park Service

    Reservation
    Required in season
    A day-use ticket is required to hike Old Rag.
    When the rule applies
    1 March – 30 November
    Booking window
    Not published by the official source
    Same-day or next-day
    Not stated on the official page
    Does a pass cover it?
    Entrance pass does not include the day-use ticket

    NPS — Shenandoah: Old Rag FAQsRecreation.gov — Old Rag Day Use

    Verified

  • Muir Woods National Monument — parking and shuttle

    Mill Valley, California · National Park Service (via authorized concessioner)

    Reservation
    Required
    Every vehicle and every shuttle rider must hold a reservation. There is no walk-up parking and no roadside parking.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Not stated on the official page
    Does a pass cover it?
    A parking reservation is not admission; the entrance fee is separate

    This is the row most often wrong elsewhere: arriving by car without a parking reservation means being turned away, not queuing.

    NPS — Muir Woods: Fees & PassesGo Muir Woods (official reservation site)

    Verified

  • Statue of Liberty — crown access

    New York, New York · National Park Service (ferry by sole authorized operator)

    Reservation
    Required
    Crown tickets must be reserved in advance and are sold only by the authorized ferry concessioner. They are never available on the island.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    No — crown tickets are not sold on the island or on the day
    Does a pass cover it?
    No multi-attraction pass includes crown access

    Pedestal and island access are a different, far more available ticket. Crown capacity is a small fraction of daily island visitors.

    NPS — Statue of Liberty: Visit the CrownStatue City Cruises — Crown Reserve

    Verified

  • Alcatraz Island

    San Francisco, California · National Park Service (ferry by sole authorized operator)

    Reservation
    Required
    Access is only by the single authorized ferry operator, on a timed departure. NPS explicitly advises buying in advance.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Not stated officially; peak-season departures routinely sell out well ahead
    Does a pass cover it?
    No city pass substitutes for the authorized ferry ticket

    Tickets sold by anyone other than the authorized operator are resales at a markup, not additional inventory.

    NPS — Alcatraz: Basic InformationAlcatraz City Cruises — Tickets

    Verified

  • Washington Monument

    Washington, DC · National Park Service

    Reservation
    Recommended, not required
    A timed ticket is needed to go up, but it need not be booked ahead: free same-day walk-up tickets are distributed at the Washington Monument Lodge.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    New advance tickets are released daily at 10 a.m.
    Same-day or next-day
    Yes — free walk-up tickets from 8:45 a.m., first come first served
    Does a pass cover it?
    No pass required; tickets are free either way

    One of very few marquee US attractions where turning up early still reliably works.

    NPS — Washington Monument: Fees & PassesRecreation.gov — Washington Monument

    Verified

  • White House — public tour

    Washington, DC · White House / US House of Representatives

    Reservation
    Required
    Tours cannot be booked directly or commercially. Requests are submitted through a Member of Congress, and the NPS states it does not schedule them.
    When the rule applies
    Year-round, subject to cancellation without notice
    Booking window
    Requests accepted no more than 90 days and no fewer than 21 days in advance
    Same-day or next-day
    No
    Does a pass cover it?
    No commercial tour or pass includes White House interior access

    The 21-day floor is the operative constraint: a request made two weeks out cannot be processed at all.

    NPS — The White House TourUS House of Representatives — White House visitor information

    Verified

  • United States Capitol — guided tour

    Washington, DC · Architect of the Capitol / Capitol Visitor Center

    Reservation
    Recommended, not required
    Tour passes are free and reservations are recommended but not required; walk-in visitors are accommodated as capacity allows.
    When the rule applies
    Year-round, Monday–Saturday
    Booking window
    Not published by the official source
    Same-day or next-day
    Yes — walk-ins accepted; the Visitor Center advises arriving by about 2:30 p.m.
    Does a pass cover it?
    Free; no pass applies

    Capitol Visitor Center — Book a Tour

    Verified

  • Library of Congress — Thomas Jefferson Building

    Washington, DC · Library of Congress

    Reservation
    Required
    Free timed-entry passes are required to enter the Thomas Jefferson Building.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Not stated on the official page
    Does a pass cover it?
    Free; no commercial pass applies

    Library of Congress — VisitLibrary of Congress — official reservation portal

    Verified

  • Independence Hall

    Philadelphia, Pennsylvania · National Park Service

    Reservation
    Required in season
    Timed tickets ($1 each) are required for the first-floor tour when the park determines they are necessary — in practice through the busy season.
    When the rule applies
    Peak season and other high-demand periods
    Booking window
    Not published by the official source
    Same-day or next-day
    Not stated officially; a limited number of day-of tickets are typically distributed at the visitor center
    Does a pass cover it?
    No pass required; the ticket is nominal

    NPS — Independence: Independence Hall Tickets

    Verified

  • Diamond Head State Monument

    Honolulu, Hawaii · Hawaii Department of Land and Natural Resources

    Reservation
    Required
    Non-residents must hold an entry reservation, for a specific time slot, whether arriving by vehicle or on foot. Hawaii residents (kamaʻāina) are exempt.
    When the rule applies
    Daily, year-round
    Booking window
    Reservations may be made up to 30 days in advance
    Reservation slots begin at 6 a.m.; the last reservation is 4 p.m. and entry must be by 4:30 p.m.
    Same-day or next-day
    Only if unsold slots remain in the 30-day window
    Does a pass cover it?
    No pass applies; entry and parking are separately priced

    One of the clearest published rule sets of any attraction in this data set — and one of the few where residency, not payment, determines whether a reservation is needed at all.

    Hawaii State Parks — Diamond HeadHawaii State Parks — Diamond Head FAQ

    Verified

  • Hanauma Bay Nature Preserve

    Honolulu, Hawaii · City and County of Honolulu

    Reservation
    Required
    A reservation is required for non-residents. Hawaii residents are exempt. The window depends on which product you book.
    When the rule applies
    Open days only — the preserve is closed on Mondays and Tuesdays
    Booking window
    Two different windows: admission with transportation up to a month ahead, but admission on its own only 2 days before the visit date
    Same-day or next-day
    No — the earliest route for admission-only is the 2-day release
    Does a pass cover it?
    No pass applies

    The split window is the trap: a visitor who plans a month out can only lock in the bundled-transport product, not plain admission.

    City and County of Honolulu — Hanauma Bay Nature Preserve

    Verified

  • Pearl Harbor National Memorial — USS Arizona Memorial programme

    Honolulu, Hawaii · National Park Service

    Reservation
    Recommended, not required
    The visitor center is free and needs no reservation. The 45-minute USS Arizona Memorial programme, which includes the shuttle boat, is a timed ticket carrying a $1 service charge.
    When the rule applies
    Daily, year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    A limited number of tickets is available on the day, but Recreation.gov warns that tickets are limited and may be fully reserved within minutes
    Does a pass cover it?
    No pass applies; the programme ticket is nominal

    Commercial tours bundling “Pearl Harbor tickets” are selling transport and guiding around a $1 federal ticket, not privileged access.

    NPS — Pearl Harbor: plan like a park rangerRecreation.gov — USS Arizona Memorial

    Verified

  • Iolani Palace

    Honolulu, Hawaii · The Friends of Iolani Palace

    Reservation
    Recommended, not required
    Docent-led and self-led tours are booked online through the palace's own booking widget. Kamaʻāina Sunday tour tickets are explicitly first come, first served.
    When the rule applies
    Year-round, on open days
    Booking window
    Not published by the official source
    Same-day or next-day
    Yes on Kamaʻāina Sunday; otherwise not stated
    Does a pass cover it?
    No pass applies

    Iolani Palace — Tours & Admission

    Verified

  • Hoover Dam — Guided Dam Tour and Powerplant Tour

    Boulder City, Nevada · Bureau of Reclamation

    Reservation
    Recommended, not required
    Powerplant Tour and visitor center admission are ticketed by date and time. The Guided Dam Tour is the deeper tour and is the one subject to operational suspension.
    When the rule applies
    Year-round, subject to notices published on the Bureau's own tour page
    Booking window
    Not published by the official source
    Same-day or next-day
    Tickets are sold at the visitor center as capacity allows
    Does a pass cover it?
    No pass applies

    Check the Bureau of Reclamation tour page before travelling rather than any third-party listing: it is where suspensions are announced, and it has carried one for elevator repairs.

    Bureau of Reclamation — Hoover Dam tour information

    Verified

  • Grand Canyon West and the Skywalk

    Peach Springs, Arizona (Hualapai tribal land) · Hualapai Tribe

    Reservation
    Recommended, not required
    Entry is by tribal pass, not a National Park Service pass. The operator states the last ticket of the day is sold at 4:30 p.m.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Yes — tickets are sold on arrival until the 4:30 p.m. cut-off
    Does a pass cover it?
    An America the Beautiful pass is not valid here at all: this is tribal land, outside the national park

    The most consequential row for anyone comparing Grand Canyon options — the federal pass and the federal nonresident fee both stop at the park boundary.

    Grand Canyon West — Tickets & Deals

    Verified

  • Empire State Building Observatory

    New York, New York · Empire State Realty Trust

    Reservation
    Required
    Dated, timed-entry tickets for a chosen arrival slot.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Tickets are sold for same-day slots subject to availability
    Does a pass cover it?
    Included as a core component of the CityPASS products, which carry their own time slot

    Priced dynamically, so the advertised “from” figure is a floor rather than a typical price.

    Empire State Building — Buy tickets

    Verified

  • Top of the Rock

    New York, New York · Tishman Speyer / Rockefeller Center

    Reservation
    Required
    Timed admission, open daily 8 a.m. to midnight with last entry at 11:10 p.m.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Subject to availability
    Does a pass cover it?
    Offered as a CityPASS choice; the pass still requires a time slot

    Bookings can be rescheduled up to 24 hours ahead — unusually flexible for a deck.

    Top of the Rock — Plan your visit

    Verified

  • SUMMIT One Vanderbilt

    New York, New York · SL Green

    Reservation
    Required
    Timed tickets for a scheduled entry time, described by the venue as a timed-ticket system.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Subject to availability
    Does a pass cover it?
    Not listed in the CityPASS slate

    SUMMIT One Vanderbilt — Tickets

    Verified

  • Edge at Hudson Yards

    New York, New York · Related Companies

    Reservation
    Required
    Timed entry; a ticket is required for every visitor.
    When the rule applies
    Year-round
    Booking window
    No stated maximum horizon, but booking 14 or more days ahead unlocks the cheaper Advance Saver ticket
    Same-day or next-day
    Subject to availability, at the full price
    Does a pass cover it?
    Offered as a CityPASS choice

    The only major deck where the official price depends on how far ahead you book — 14 days is the published threshold.

    Edge NYC — Get ticketsEdge NYC — Advance Saver ticket

    Verified

  • One World Observatory

    New York, New York · Legends / One World Trade Center

    Reservation
    Required
    Admission requires a chosen date and entry time.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Subject to availability
    Does a pass cover it?
    Not listed in the CityPASS slate

    One World Observatory — Buy tickets

    Verified

  • 9/11 Memorial & Museum

    New York, New York · National September 11 Memorial & Museum

    Reservation
    Required
    Advance timed tickets are required for the Museum. The outdoor Memorial plaza is free and needs no reservation at all.
    When the rule applies
    Year-round
    Booking window
    Tickets can be purchased up to six months in advance
    Same-day or next-day
    Subject to availability
    Does a pass cover it?
    Offered as a CityPASS choice; the time slot still applies

    The longest clearly published booking horizon of any venue in this data set, and the clearest free-versus-ticketed split.

    9/11 Memorial & Museum — Visit the Museum

    Verified

  • Tenement Museum

    New York, New York · Tenement Museum

    Reservation
    Required
    There is no general admission. The museum states it is only accessible by guided apartment tours or neighbourhood walking tours, each on a fixed departure time.
    When the rule applies
    Year-round
    Booking window
    Not published by the official source
    Same-day or next-day
    Subject to tour availability
    Does a pass cover it?
    No pass substitutes for a tour booking

    Tenement Museum — Plan a visit

    Verified

  • Getty Center

    Los Angeles, California · J. Paul Getty Trust

    Reservation
    Required
    Admission is free but a timed-entry reservation is required. The reservation, not the price, is the constraint.
    When the rule applies
    Year-round, on open days
    Booking window
    Rolling: “Additional dates are released daily; please check back for new dates up to six weeks in advance”
    Same-day or next-day
    Not stated; the daily release is the published route to a slot
    Does a pass cover it?
    No pass applies — admission is free; parking is charged separately

    The clearest published release cadence of any venue we checked, and a useful correction to the assumption that free means walk-in.

    Getty — Visit the Getty CenterGetty — Getty Center reservations

    Verified

  • Getty Villa

    Pacific Palisades, California · J. Paul Getty Trust

    Reservation
    Required
    Admission is free and a timed-entry reservation is required, on the same model as the Getty Center.
    When the rule applies
    Year-round, on open days
    Booking window
    Rolling daily release, with new dates appearing up to six weeks ahead
    Same-day or next-day
    Not stated
    Does a pass cover it?
    No pass applies; parking is charged separately

    A Getty Center reservation is not valid at the Villa; they are separate bookings.

    Getty — Visit the Getty VillaGetty — Getty Villa reservations

    Verified

  • Griffith Observatory

    Los Angeles, California · City of Los Angeles

    Reservation
    Not required
    The observatory states that admission to the building, the grounds and the public telescopes is always free, with no reservation. Planetarium shows are separately ticketed.
    When the rule applies
    Year-round, on open days
    Booking window
    Nothing to book
    Same-day or next-day
    Yes
    Does a pass cover it?
    No pass applies to the building or grounds

    Commercial “Griffith Observatory tickets” are transport or guiding: the building itself has no admission charge and no reservation.

    Griffith Observatory — Getting here

    Verified

  • Warner Bros. Studio Tour Hollywood

    Burbank, California · Warner Bros. Discovery

    Reservation
    Required
    A working studio: every visit is a booked tour with a specific date and departure time.
    When the rule applies
    Year-round, on operating days
    Booking window
    Not published by the official source
    Same-day or next-day
    Subject to departure availability
    Does a pass cover it?
    No city pass substitutes for a studio tour booking

    Warner Bros. Studio Tour Hollywood — FAQ

    Verified

  • Walt Disney World theme parks

    Orlando, Florida · The Walt Disney Company

    Reservation
    Required in season
    Disney's own wording: “Before you visit a park, you must have valid admission and may need a theme park reservation, depending on the type of admission and the date of your visit.” A reservation is date-based, not hour-based.
    When the rule applies
    Depends on ticket type and date
    Booking window
    Not published by the official source
    Same-day or next-day
    Depends on ticket type and remaining park capacity
    Does a pass cover it?
    A ticket is not automatically a reservation — for some ticket types you need both

    The reservation requirement is conditional on what you bought, which is why blanket statements in either direction are wrong.

    Walt Disney World — Experience updates

    Verified

  • Space Center Houston

    Houston, Texas · Manned Space Flight Education Foundation

    Reservation
    Required
    General admission is sold as timed entry, from 9 a.m. to 3:30 p.m.
    When the rule applies
    Year-round, on open days
    Booking window
    Not published by the official source
    Same-day or next-day
    Subject to availability
    Does a pass cover it?
    No pass applies

    Space Center Houston

    Verified

  • Kennedy Space Center Visitor Complex

    Merritt Island, Florida · Delaware North (for NASA)

    Reservation
    Required
    Admission is date-based: the official store requires a date to be selected before tickets can be added to a cart. No hourly slot is enforced.
    When the rule applies
    Year-round, on open days
    Booking window
    Not published by the official source
    Same-day or next-day
    Subject to availability
    Does a pass cover it?
    No pass applies

    Kennedy Space Center Visitor Complex — tickets

    Verified

  • Vizcaya Museum & Gardens

    Miami, Florida · Miami-Dade County

    Reservation
    Required
    Dated tickets with an arrival window rather than a strict hourly slot. The official ticketing page states dates are made available approximately two to four weeks in advance.
    When the rule applies
    Year-round, on open days
    Booking window
    Dates released approximately 2–4 weeks ahead
    Same-day or next-day
    Subject to availability
    Does a pass cover it?
    No pass applies

    A short published horizon: a visitor planning two months out simply cannot book yet, which reads as sold out but is not.

    Vizcaya Museum & Gardens — Welcome

    Verified

  • San Francisco cable cars

    San Francisco, California · SFMTA

    Reservation
    Not required
    There is no reservation system at all. A single-ride fare is bought before boarding at the boarding points; this is a fare, not a timed ticket.
    When the rule applies
    Year-round
    Booking window
    Nothing to book
    Same-day or next-day
    Yes — the only option is to queue
    Does a pass cover it?
    Transit passes apply; sightseeing passes do not create priority boarding

    Included deliberately: “cable car tickets” sold as a reservable attraction are transit fares, and no product shortens the queue at Powell and Market.

    SFMTA — Cable car single ride

    Verified

Questions we get asked

Which US national parks require a reservation in 2026?
Of the parks in this data set, Rocky Mountain National Park requires timed entry between 9 a.m. and 2 p.m. from 22 May to 12 October 2026, Acadia requires a vehicle reservation for the Cadillac Summit Road from 20 May to 25 October, Haleakalā requires a sunrise reservation year-round, and Muir Woods requires a parking or shuttle reservation year-round. Arches, Glacier and Yosemite have all dropped advance reservations for 2026.
Did Glacier National Park really drop vehicle reservations?
Yes. The park's own 2026 vehicle reservations page states that vehicle reservations will not be required in 2026, and that Glacier is instead piloting a ticketed-only shuttle system and three-hour limited timed parking at Logan Pass. That is a change in how Logan Pass is accessed rather than a removal of all controls.
How far ahead do reservations open?
There is no common answer, which is the point of this table. Published windows in this data set run from six months (the 9/11 Memorial Museum) through 90 days (part of Acadia's allocation), 60 days (Haleakalā), six weeks on a rolling daily release (the Getty), 30 days (Diamond Head) and two to four weeks (Vizcaya), down to two days for the bulk of Acadia's slots. Most privately operated attractions publish no window at all.
Does a national park pass replace a timed-entry reservation?
No, and the reverse is also true. At Rocky Mountain you need both an entrance pass or fee and a timed-entry reservation during the hours the rule applies. At Carlsbad Caverns the reservation only selects your entry time and admission is still paid at the visitor center. The two things are priced and issued separately almost everywhere.
Can I still visit if reservations are sold out?
Often, but by changing your timing rather than your plans. Rocky Mountain requires nothing before 9 a.m. or after 2 p.m., Haleakalā requires nothing outside the sunrise window, and Acadia's rule applies only to the Cadillac Summit Road. Several systems also hold back inventory: Rocky Mountain releases next-day reservations at 7 p.m. MT, Haleakalā releases a portion 48 hours ahead, and Acadia holds 70% of slots until two days before.
Is a multi-attraction pass a way around a time slot?
No. Where a venue is included in a pass, the pass covers admission and you still book a time slot. Passes do not create additional capacity, and at venues run by a sole authorised concessioner — the Alcatraz and Statue of Liberty ferries — no pass substitutes for the operator's own ticket.

Methodology and scope

Published so that anyone citing this data set can state its limits accurately.

What counts as a source
Only the body that sets the rule: the National Park Service page for that park, Recreation.gov, the state or city agency that runs the site, the federal agency that owns it, or the venue's own official page. Where access is controlled by a single authorised concessioner — the Alcatraz and Statue of Liberty ferries, Muir Woods parking — that operator's official page is treated as primary, because no one else can sell entry. No aggregators, no guidebooks, no reseller pages.
Why some booking windows say “not published”
Because they are not published. Many venues sell dated tickets on a rolling calendar without ever stating how far ahead that calendar extends. We do not convert an observed calendar into a rule, and we do not repeat a day-count from another publisher. A blank here is a finding about the venue's transparency, and it is the field most often filled in elsewhere with a guess.
Required, seasonal, recommended, not required
“Required” means you cannot enter without holding it. “Required in season” means the rule bites inside a stated season or band of hours and not outside it. “Recommended” means the agency advises booking but walk-up entry genuinely exists — the Washington Monument and the US Capitol are the clear cases. “Not required” means no advance reservation of any kind. We use the agency's own framing, and flag it in the notes where the agency's own pages disagree with each other, as at Carlsbad Caverns and the Frick.
What this data set does not cover
It covers advance-reservation and timed-entry rules only. It is not a price list, not a ranking, and not a guide to whether an attraction is worth visiting. Backcountry and wilderness permits are out of scope except where the permit is the only way to do a named marquee hike, as at Angels Landing and Half Dome. Commercial tour availability is out of scope entirely.
Volatility and correction
Reservation systems change between seasons, and several changed for 2026. Each row carries the date we last read its cited source. We re-verify monthly and correct immediately on any announced change, dating the correction. If you find a row that has changed, tell us: a correction is more useful to us than the appearance of stability.
Independence
America Experiences earns commission on tours booked through our destination pages. This page carries no booking links, no affiliate links and no product recommendations, and no operator has any input into what it says. Rows that reduce the appeal of a bookable tour — that Griffith Observatory is free to walk into, that a Pearl Harbor programme ticket costs $1, that no product shortens the cable car queue — are included for exactly that reason.

Related pages on this site

Using or citing this page

Journalists, DMOs, university international offices and travel advisors are welcome to quote the table with a link back. Every row links to the page it came from and carries its own verification date, so you can check it independently before you publish. If a rule has changed, tell us and we will correct the row and date the correction.

Suggested citation: “America Experiences, US attraction reservation rules and booking windows, verified August 26, 2026 — https://americaexperiences.com/us-attraction-reservation-rules”

Every source cited on this page (59)