I got up this morning and my headache was relieved. After drinking the Rhodiola and glucose brought by my classmates, I decided to cross the Gaoer Temple Mountain at an altitude of 4412 meters along the southern Sichuan-Tibet line of G318, passing the Yajiang River, crossing the 4659-meter scissors and bending the mountain, and then crossing the Kazla Mountain at an altitude of 4718 meters, walking with military vehicles all the way. The natural scenery on both sides of the road is infinite. I met many riders along the way, and I admired their courage. After returning, I strengthened my waist and thigh training and strived to ride the Sichuan-Tibet line next year. 15:35 Arrive at the "World High City" Litang at 4014 meters above sea level, 19:10 in the evening to Daocheng County, 3,760 meters above sea level, live in Daocheng tonight, go to Aden Nature Reserve tomorrow.