Look around Cavallo Point today and you’d be forgiven for likening the extensive horseshoe-shaped compound to one of the Adirondack resorts renowned for Dirty Dancing-style revelry. But in fact this enclave of isolation directly underneath the Golden Gate Bridge was once Fort Baker, a military installation dating back to 1902. Rooms in the historic officers’ quarters are reminiscent of a Greek revival mansion, with wide front porches and turn-of-the-century woodwork, while rooms in the new wings feature radiant heat floors and plate-glass windows.