Curious about the Bay floor?
Ferries crisscross the San Francisco Bay, traveling to and from Alameda, Angel Island, Larkspur, Oakland, Pier 41, the San Francisco Ferry Building, Sausalito, South San Francisco, Tiburon, and Vallejo; with site-seeing cruises going under the Golden Gate Bridge and around Alcatraz Island. Ever wonder what it looks like underneath your ferry boat?