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From Wikipedia, the free encyclopedia. In its 29 years of operation, there were 14 acknowledged attempts to escape from Alcatraz prison involving 34 inmates (two, Joseph Cretzer and Sam Shockley, tried twice). Officially, every escape attempt failed, and most participants were either killed or quickly re-captured.
The tour of Alcatraz departs daily from Fisherman's Wharf in San Francisco. Alcatraz was used as a federal maximum security prison from 1934 until 1963, when it was closed due to high costs and security issues.