BART station is directly next to the terminal. Exit at Embarcadero station. Most of the BART stations in SF are walking distance of each other. You can actually

BART station is directly next to the terminal. Exit at Embarcadero station. Most of the BART stations in SF are walking distance of each other. You can actually walk from there to the pier with the Alcatraz ferry if you feel like it. Make sure you get a ticket for Alcatraz ahead of time as it runs out fast. Another option is stop at Montgomery station and taking a cable car to the piers. Also get a city pass you if want to visit multiple things in a day and save some money. http://www.citypass.com/san-francisco http://www.citypass.com/san-francisco