Several ferry lines run out of San Francisco. Blue & Gold Fleet operates a number of routes, including service to Sausalito ($13 one-way) and Tiburon ($13 one-way). Tickets are sold at Pier 39; boats depart from Pier 41 nearby. Alcatraz Cruises, owned by Hornblower Cruises and Events, operates the ferries to Alcatraz Island ($42, including audio tour and National Park Service ranger-led programs) from Pier 33, about a half-mile east of Fisherman's Wharf. Boats leave 14 times a day (more in summer), and the journey itself takes 30 minutes. Allow at least 2½ hours for a round-trip jaunt. Golden Gate Ferry runs daily to and from Sausalito and Larkspur ($13.50 and $13 one-way), leaving from Pier 1, behind the San Francisco Ferry Building. The Alameda/Oakland Ferry operates daily between Alameda's Main Street Terminal, Oakland's Jack London Square, and San Francisco's Pier 41 and the Ferry Building ($7.20 one-way); some ferries go only to Pier 41 or the Ferry Building, so ask when you board. Purchase tickets on board.