No visit to San Francisco is complete without a visit to the fascinating Alcatraz Island. Step back in time and experience this legendary landmark that was a civil war fort, a military prison and one of the most notorious federal penitentiaries in US history. Cruise over from Alcatraz landing on Pier 33 and enjoy an audio cell house tour, stepping inside one of the tiny cells to feel what prison life was really like. Explore the historic exhibits and even spot a surprising wealth of bird life that flourishes on the island.