Introduction to Wuyun Mountain: Wuyun Mountain was known as Longkou Mountain and Qingyun Mountain in ancient times. It is the third mountain among the West Lake mountains, with an altitude of more than 300 meters. Wuyun Mountain is located between the Qiantang River and the West Lake, with abundant water vapor. There is a significant temperature difference between the mountain and the mountain, forming mountain clouds. When exposed to strong sunlight, they appear in colorful clouds.