There is public nudity in Korea, and lots of it. However, it is all gender-segregated and indoors. I am talking about public baths. Koreans love them, and Busan is apparently sitting on top of quite a bit of hot spring water. The baths here are quite famous and one, the Hurshimchung, claims to be the largest facility in all of Asia. It took me a while to muster the nerve, but I finally went to one and I am happy to report that it was awesome.
Boy, that is a good one. I have never come into a more modest group of people in my life. Last week, while doing a unit on travel with my older students (middle school), one of them asked me if it was true that there are places where people swim in the ocean naked. I said yes, I have heard of such places, but that I had never been to one. They screamed and reflexively covered their eyes at the thought. Most Koreans at the beach swim fully clothed.