Introduction to Daocheng: Daocheng County is located on the southwestern edge of Sichuan Province, China. It is located in the southeast of the Qinghai-Tibet Plateau and east of the Hengduan Mountains. It belongs to Ganzi Tibetan Autonomous Prefecture in Kham Tibetan Area. It spans 27°58'-29°30' north latitude, 99°56'-100°36' east longitude, 174 kilometers long from north to south, 63 kilometers wide from east to west, and covers an area of ​​7323 square kilometers. Daocheng County has a population of nearly 30,000, and the economy is semi-agricultural and semi-pastoral. Among them, Tibetans account for more than 96%, in addition to Han, Naxi, Hui, Yi and other ethnic groups. Because Daocheng has a higher altitude, it is necessary to pay attention to altitude sickness when coming to Daocheng. It is recommended to bring oxygen-carrying tablets, which can quickly alleviate the symptoms of altitude sickness and enhance exercise capacity.