The note sends a hot-season visit into the rainforest at Wuzhishan, for cooler air, a river run, and a short highland stay.
Hongxia Valley rafting
A rainforest run with a real drop, fast water and calmer pools, much of it under trees.
Wuzhishan rainforest park
The Wuzhishan section of Hainan Tropical Rainforest National Park: mountain forest, old trees, vines, streams and mist. The page treats it as a walk and a nature stop, not a beach day.