Welcome to Yunnan, Welcome to Tengchong! It’s my honor to be your guide. Today we are going to visit the volcanoes and hot springs in Tengchong, which are the most famous here.As we will get there in a few minutes, first allow me to give you a brief intoduction of Tengchong. Tengchong is located in the southwest of China and occupies an area of 5800 square kilometers. There are 23 nationalities h..