The region never ceases to amaze. I have spent most of my adult life around Yunnan, and I am writing an ancient history of the area. It has significant historic links with India, Tibet, Southeast Asia, Central Asia, Iran, Vietnam and China. It's the most biologically, culturally, linguistically, climatically and culinary diverse area of China and possibly the world. If you find yourself with time, cycle touring the area is one of the best things you can do anywhere on the planet.