I put yes, because I've been to one. My parents accidently took us on a hike to one on a trip to Hawaii when my siblings and I were 9,10, and 11. We still laugh about that story!
I've also been to beaches in Europe, but chose to keep my top on. I thought it was a no brainer since I had a one piece, but I saw lots of women with their one piece on but the shoulders slipped off to bare their breasts.
I'm not sure if I'd go to a nude beach purposely or not - I don't really have a big desire to, but might if the beach was nice enough. I usually have my kids with me and I do know I'm not going to repeat that childhood incident!