Mountain climbing is a very difficult thing for me. Every time I always tell myself that climbing is impossible, it is impossible, but every time I will conquer a mountain, this time is Yunfeng Mountain in Tengchong, Yunnan. After 20 minutes of the ropeway, it takes 10 to 20 minutes to climb to the top. Although there are few roads to go, its slope is very steep, and some places must be 90 degrees. When we went down the mountain, we gave up the original road, because the back mountain was relatively not so steep, and returned from the back mountain. I used our "painful" lessons to tell everyone that we must return to the original road, because the back mountain is equivalent to the mountain. Circle, and then climb up the slope is more tired, so I still recommend that everyone return from the original road.