It was a long time ago about 1955 I was in the RAF in Germany. I was stationed at Cuxhaven on the N sea coast, the tide goes out for miles there. One day on a walk wearing my swim trunks I came upon a group of naked German people. I quickly removed the speedos to much waving and laughter from my new friends. We could not speak each others language but it was nice to be amongst them. On later walks I walked a short way wearing speedos then went naked meeting lots more naturists on the beach.