Quluzu Travel Network will give you the answer: After arriving in Kunming from Chongqing, buy a bus ticket to go to Dali. After visiting Dali, set off to Tengchong and Ruili. I think this may be more appropriate. Dali is mainly Mainly for leisure and relaxation, a stay of about two days is enough. Tengchong Ruili is relatively remote, so you can go there and experience the local customs. You will definitely gain something different. O(∩_∩)O