Cruise under both the Golden Gate Bridge and the Bay Bridge in one spectacular cruise along San Francisco's entire urban skyline, accompanied by an award-winning audio narration (available in 16 languages). Explore San Francisco's stunning landmarks like Alcatraz Island, Coit Tower, the ferry building, Transamerica Pyramid, the Palace of Fine Arts, and many more. This San Francisco Bridge 2 Bridge tour gives tour guests the opportunity to learn about this city's unique natural history, architecture, and Native American culture. The multilingual audio tour includes details about the building of both bridges, the geology of San Francisco Bay, and the earthquakes that shake San Francisco and require special seismic considerations in the designing of new structures. Duration: 1.5 hours