I Actually DidI was vacation in La Camague with my (now ex) wife, and we were taking a walk to find the flamingos which nest there. We made our way to the beach, and started to walk back to the public beach, about a half mile away. In the distance we saw a man walking toward us, and what appeared to be a speedo was actually nothing at all. We looked at one another, and realized why there was a rock wall between the public beach and the beach we were currently on.
We figured, "Hey, we are in France, we don't know anyone else, Why not?" So we both dropped our clothing, and spent a very leisurely and enjoyable afternoon on beach.
It was totally worth the sunburn we both got.