Hard days of trekking and rough climbs towards mountains and villages can make a holiday less nice. For this reason, if you are in the Yunnan, we suggest to give yourself a more relaxing day in the geothermal park of Tengchong. In a landscape littered with volcanos, hills and crystaline rivers full of black fishes, natural pools, calm streams and relaxing hot-water falls will free you from every infirmity and physical pain.