Walking around Aden is a rare challenge for me. From the Chonggu Temple-Luorong Niuchang, I felt the weather of the four seasons along the way. First, the sun was shining, then the snow, and then suddenly the heavy snow began. It was a sudden change. Perhaps after experiencing heavy snow, heavy rain, hail, and not seeing the milk sea and the five-color sea. But from an altitude of 4,000 to 5,100, taking the SLR for seven hours to walk to the dead slope, this is an irreplaceable precious journey.