There are some sports that are cliched nudist sports. Volleyball seems to be popular with the nudies but I think that might have as much to do with the jiggling entertainment value for the spectators. Water based sports (you’ll note I avoided saying watersports) are a natural fit of course. Bike riding is easy and fairly practical for nudists, but finding areas big enough could be an issue. Ice hockey and basketball I would have thought a little dangerous with sticks, elbows and other bits and pieces flying around and rock climbing? Well I guess over a river you can just drop back into the water and there’s no uncomfortable harness.
What sports have you done nude?