"Centrally located adjacent to Mission Bay Park and Golf Course," which by the way is lit at night for your golfing pleasure. The Google says it's permanently closed now.

Possibly because it's been demolished. It lives on for a while in the drive-by view.

Note the cheapness of the sign. Those two meaningless globes were common in the early 70s. Perhaps they were supposed to connote balloon-related notions of fun. But no one ever looked at them and thought "fun." You thought "it's the early 70s, and a shabby false gaeity suffuses so much of this weary culture."

Well, maybe not in so many words.