The round hole between the boulders overlooking the top of the mountain is really like a full moon hanging in the sky, which is the impression of the tourists on a sunny day, the day is cloudy, the mist is lightly covered, and the long-focus lens captures the faint outline. The Nu River flows from the observation deck to the foot of Shimoon Mountain. The village houses on the right bank are halfway up the mountain. The wooden houses on both sides of the observation deck are places to sell Dai costumes and tourism supplies. Occasionally, the euphemistic music of the Yi nationality floats out of the wooden house. The women in Yi costumes look at each other with tourists. Smiling, this is a beautiful place.