Make sure to sit on your towel, it's more hygienic than sitting in the river, and to play with their cocks on the beach. But if yoga, why not enjoy any kind of meditative activity naked? Gosh, that's the heaven on earth for all to enjoy. You feel better and better naked and now start to enjoy the nude-friendly hot spring as if nothing is. Watch how they are getting tan, laying topless, swimming and playing at nude beaches.