I still have vivid memories of getting dumped off with a few people near some beach in Sanya at like 5:30am after a *rough* night, and seeing a HUGE SWARM of old people practicing Tai Chi on the beach. It was actually a super beautiful site – the sun rising, the beach clean (the hordes hadn’t hit it yet), and old people slowly moving their hands in seemingly synchronous patterns. Sanya has amazingly fresh air for China, and I’d imagine that’d be the place I would go if I wanted to practice Tai Chi.