The Horse-washing Pond lies between the Yuju and Zhonghe peaks in the Cangshan Mountains. It is 4,000 meters above sea level and is a high-latitude drift pond of the Quaternary Period. A legend says when Khublai Khan made an expedition to Dali, he crossed the Cangshan Mountains and washed his horses here. In late spring and early autumn, the weather is clear, the snow has melted and the flowers are blossoming. So both late spring and early autumn are the best seasons to visit the Horse-washing Pond.