Last weekend, I joined some friends for a mini-vacation at Big Bear Lake and got my first taste of Paddle Board Yoga. It's pretty self-explanatory, you just practice yoga on a paddle board and try not to fall off-- it forces you to balance, and practice deliberately, rather than sloppily. It is, to put it mildly, challenging.
But so, so beautiful! And, if you don't mind some swimming with your yoga, it's pretty fun.