We took the airtrain from the airport to the BART (Bay Area Rapid Transport) station. This is just like our light rail system. Ours is much cleaner, probably because it's newer, but an inexpensive way to travel. We also took the F train which took us to and from the Fisherman's Wharf and the ferry building. On our trip back from Napa Valley, we took a ferry ride from Vallejo back into the city.
