Balboa Island Museum

A tiny, sunlit cottage on Marine Avenue that tells the odd, proud story of Balboa Island. Docents stand ready with a pointed photograph or an entertaining anecdote about the Hershey family, the hand-pulled ferry, or John Wayne's island days. The exhibits are mostly photos and captions, the kind of close-up history that rewards a slow look: sepia postcards, development maps, a display about how sand and sweat shaped the lots. Visitors drift in between shopping and an ice cream run, pockets of conversation rising and falling like the nearby harbor. Expect to spend 20 to 40 minutes. Admission is free, donations keep the lights on, and yes, there is an upright piano by the window that a local will sometimes sit down and play. That piano, slightly out of tune, feels like the real artifact.