My parents used to have a place on Pine Island at the Gulf side of Florida. They would take us out to Captiva Island to get sea shells and spend the day at the beach. The south end of the island had a private nude beach for older folks. We would often accidentally get a bit too close because we were busy looking down for sea shells while we walked the beach.
Like I said I kept my distance. I didn't want to see anything that I'd wish I could unsee. I was with my little preschool son at the time. I remember him asking why we had to turn around.