I suggest you go to Sichuan, where there are many delicious foods. The accommodation is definitely cheap, and there will not be too many people ~ ~ ~ ~

Route: Chengdu-Xichang (my classmate is from there, and it is said that Xichang has Qionghai, Luoji Mountain and other scenery, which is not famous, but beautiful, and I have seen photos)-Jiuzhaigou (.