At the base of the north tower is the Golden Gate Motor Lifeboat Station, U.S.C.G., and the Travis Marina, home of the Presidio Yacht Club. It is affiliated with the Travis Air Force Base, the heir of the Ft. Baker garrison which once manned the fearsome batteries that guarded the approaches to San Francisco Bay from Point Reyes to the Gate.
There I spent five days aboard the Herreshoff H-28 Fjord, a fine boat whose captain earned his slip under fire forty years ago.
The full slide show is here