But there could be a threat to one of San Francisco’s biggest attractions: the boat tours to Alcatraz Island. Alcatraz boat tours attract more than 1.5 million visitors to the island yearly.

Tours operate daily at 8 a.m., 10 a.m. and 2 ... beneath both the Bay Bridge and Golden Gate Bridge, tourgoers will see Alcatraz Island, Palace of Fine Arts and the city skyline, among other ...

Alcatraz ferry workers strike as SF summer tourism season starts Alcatraz City Cruises workers are striking for better wages as San Francisco's summer tourism season is just getting started.