Alcatraz reveals stories of American incarceration, justice, and our common humanity. This small island was once a fort, a military prison, and a maximum security federal penitentiary. In 1969, the Indians of All Tribes occupied Alcatraz for 19 months in the name of freedom and Native American civil rights. We invite you to explore Alcatraz's complex history and natural beauty.
Activities: Birdwatching · Bookstore and Park Store · Food · Museum Exhibits · Shopping · Wildlife Watching
Monthly recreation visits · 2025
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Annual recreation visits · 1979–2025
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Published entrance fees
No fee entries were supplied in this snapshot. Check the official park page.
Published passes
No fee entries were supplied in this snapshot. Check the official park page.
Published operating hours
Alcatraz Island · Access to Alcatraz Island is via commercial ferry service. For ticket reservation and schedule call (415) 981-7625 or go to www.alcatrazcitycruises.com. The ferry schedule changes seasonally. Alcatraz is closed on Thanksgiving, Christmas and New Years Day. Once on the island you can stay up to the last ferry. Be aware that tickets sell out quickly and reservations are recommended. Tickets go on sale 90 days in advance.
Fees, facilities and activities are the 2026-10-03 NPS snapshot. Historical visitation describes recorded visits, not crowding forecasts or present conditions.
Plan your visit
The climate on Alcatraz is unpredictable and can change suddenly. Cold, foggy mornings may give way to sunny afternoons, which in turn can shift quickly back to more fog and blustery winds. The most pleasant weather usually occurs in spring and fall. Summers tend to be cool and foggy, winter is our rainy season. Temperatures on Alcatraz seldom rise above 75°F (24°C) or fall below 38°
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SOURCES & DEFINITIONS
Know what the map counts.
Source: National Park Service API for sites, facilities, campground locations and published fee entries; NPS Public Use Statistics for monthly recreation visits, 1979–2025. Snapshot retrieved 2026-10-03. 474 NPS site records include 62 national-park API records; Sequoia and Kings Canyon share one API record. These record counts are not the official count of individually designated parks. 392 API site records have matched visitation history, including the separately reported Sequoia and Kings Canyon visit totals combined for their shared API record. 665 campgrounds are included.
Complete monthly series reconcile with the source’s annual totals. Published annual totals remain available for years with partial monthly reporting. Four monthly entries contain negative accounting corrections. They remain in the archived data and annual totals, and are unavailable as ordinary monthly visit counts. Blank data is not zero. Recreation visits are visits, not unique people. Month as percent of annual peak = selected month visits ÷ largest monthly count that year × 100, requiring twelve nonnegative monthly values. This helps compare recorded seasonality; it is not a crowding forecast, reservation forecast, or present-condition report.
Activities and amenities reflect published NPS entries, rather than a guarantee of access on a particular day. Fees and pass categories are dated 2026-10-03; official site and reservation links provide current conditions and rules. Campground points are published NPS coordinates. Offshore sites can be viewed on the world extent. Broader public-land agencies are outside this reviewed NPS snapshot.
nps-parks.json · National Park Service · NPS federal data; media rights vary by credit · retrieved 2026-10-03 · 3,921,936 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 29b719dea3c3361c4ef1d7c0f068da09ee366e5335907442453b08db7737072b
nps-campgrounds.json · National Park Service · NPS federal data; media rights vary by credit · retrieved 2026-10-03 · 3,464,748 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 9762634332c69e5ed729fbe4751a163cab534722c07c7e595b857e9a372b75e3
nps-campgrounds-500.json · National Park Service · NPS federal data; media rights vary by credit · retrieved 2026-10-03 · 967,966 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 4160009fb0ddc173680428bba03b765398deeca9d303a518821967c7db5fea20
nps-visitation-2025-2025.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 1,071,221 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 878c51940ae94a29c7e47518d2321713e6d48ad9b008408530723745ca5fab5a
nps-visitation-2021-2024.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 4,209,731 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 508548d54089885eb78af5a81c63856ba289c01ee8f39c2d096267b3cf9ce243
nps-visitation-1979-1983.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 3,868,488 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 494795b9ffb6da1f00e10614cde87ef8b18aca67e9c504c2196ba0346c21ddd7
nps-visitation-1984-1988.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 4,171,732 uncompressed bytes. Published source · Archived input (gzip) SHA-256: cd6e3b86c83ecc9ab11d123ea8f560f0590446020fe66eea21e272eb8d931eb7
nps-visitation-1989-1993.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 4,393,574 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 22960690990cec0c7af0e7a55d87ef7ee3d8a116afd81bf753c821f65e50ad00
nps-visitation-1994-1998.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 4,538,236 uncompressed bytes. Published source · Archived input (gzip) SHA-256: c021fdd6108c9d3e1047b954376cf8e01c4f8abf0f327dfe081596dff7939e48
nps-visitation-1999-2003.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 4,704,673 uncompressed bytes. Published source · Archived input (gzip) SHA-256: da3f808031e6f26e1e36c42cc11403b415e24e67844762ac51f33998d2c1cd5f
nps-visitation-2004-2008.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 4,844,655 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 373f1d9ae9eff33e2e73b3bfc26d26c6504d2f831fc5b41c5c1e3df7bade6047
nps-visitation-2009-2013.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 4,928,350 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 968591a7dd40985cc44fea48568b8a0880953c7b982b328a6c88077d064c12c2
nps-visitation-2014-2018.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 5,057,268 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 76f1e2173bee73eee3550e4e2e3a987e19d67d4f6841c9c726fa412360a3fb20
nps-visitation-2019-2020.csv · National Park Service · NPS federal data · retrieved 2026-10-03 · 2,028,678 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 661d426529aa1b5771d52e29c90758b943edf883fa8e1f9c53f76851e450e5f1
