Was that the Isle de Levant, mishap ? I was there with DH when we were both young and foolish. We went over out of curiosity, to see just what a nudist island was like - we thought the nudists would be in a camp somewhere, but the whole island was naked. We weren't really prepared for the topless girl at the kiosk at the rudimentary jetty, let alone the full frontals walking about. I felt overdressed in my teeny weeny yellow (but not polka-dot) bikini. Removed the top but wasn't brave enough to bare all.
After a quarter of an hour, we didn't even notice whether people were totally nekkid or were wearing "le minimum". A gorgeous tanned couple both with long black hair walked toward us, and after they were past we commented on their native-american type headbands, then asked each other "Were they wearing anything else?"
It would have been paradise - but wandering about the sand dunes were a lot of solitary plump white slugs of males with binoculars and cameras with telephoto lenses slung around their necks.