What are some of your favorite nude memories?

One of my wife's rich uncles owned a cottage on a private lake with a private beach. On a couple of occasions, my wife and I would spend the weekend at the cottage and swim nude in the lake. One weekend, there was a small group: my wife and i, her brother, and their friend, Jim. We decided everybody had seen Lynn naked, so it was a nude weekend. No sex, except for Lynn an me, but lots of sexy thoughts.