- Official name: Alcatraz Island
- Location/ area: Located 1.25 miles offshore from San Francisco, California, in the middle of San Francisco Bay.
- Size: Approximately 22 acres
- Altitude, terrain type, climate: Elevation ranges from sea level to 135 feet. The island has steep terrain, exposed rock, and coastal vegetation with a cool, foggy maritime climate.
- Major areas/sections: Main Cellhouse, Lighthouse, New Industries Building, Guardhouse, Dock Area, Gardens, and historic ruins from the military and prison eras.
- Age: Established as a U.S. military fort in the 1850s
- No. of visitors per year: Over 1.5 million
- UNESCO World Heritage Site: Listed on the National Register of Historic Places since 1976
- Access: Only by ferry
Quick facts
Book Alcatraz Tours
Alcatraz Island Tickets with Ferry Ride and Self-Guided Tour App
Combo: Alcatraz Tickets with Ferry Ride + Golden Gate Bay Cruise
San Francisco Bay Cruise
Alcatraz Day Tour
Combo: Alcatraz Tour + San Francisco 48-Hour Hop-on Hop-off Bus Tour
San Francisco Bay Sunset Cruise with Cash Bar
Alcatraz Ticket + Ferry with North Beach Walking Tour
From San Francisco: Alcatraz, Muir Woods, & Sausalito Day Trip
From San Francisco: Alcatraz, Aquarium of the Bay & Yosemite 2-Day Trip
#From San Francisco: Alcatraz, Aquarium of the Bay, & Napa/Sonoma Wine Country 2-Day Trip
Highlights of Alcatraz Island

The Cellhouse

The Recreation Yard

Alcatraz Lighthouse

The Warden's House and guard quarters

Signs of protest
