Welcome to San Francisco Marina Small Craft Harbor website. San Francisco Marina, as it is also known, is a destination sought by thousands of boaters from all over the world. The oldest recreational marina operating in San Francisco, and perhaps the Greater Bay Area, the harbor has had vessels berthed in its original basin, now known as the West Harbor, since before the 1906 earthquake. The original marina was expanded in the mid-1960s and is now approximately 35 acres. The entire facility has 727 berths, including 15 end ties for guest berthing vessels up to 50 feet LOA, free pump out stations and a commercial fuel dock.San Francisco Marina also features a large and popular park, Marina Green, which is home to many events including Escape From Alcatraz and Fleet Week. Marina Green also has several “par course” workout stations along its perimeter.