Combine a San Francisco bike adventure with admission to Alcatraz Island on this two-part tour. First, cruise to Alcatraz by ferry, and explore the island prison independently on a self-guided walking tour with a personal audio guide. Then head to Fisherman's Wharf to start your selected 3- or 4-hour bike tour — a ride across the Golden Gate Bridge, a tour of the city streets or an evening tour that ends in the Presidio. This combo tour takes place over two days.