Erhai Park or Tuanshan Hill Park is one kilometer east of Xiaguan, Dali City. It borders mirror-like Erhai Lake in the north and is located at the foot of the Cangshan Mountains. It is a good place for viewing the Cangshan Mountains and Erhai Lake. In ancient times, Erhai Lake had a high water level and the park was just an island in the water, like a dragon lying in the lake. So the mountains were called Dragon-resting Mountains in olden times. Erhai Park was built in 1975, and covers an area of 113 Hectares. In the park, pine trees and flowers are every-where. Also there is an azalea garden and a bamboo grove. The pavilions, towers and halls are good places for tourists to relax in.