Introduction to Haishi Park: Haishi Park is a karst landform park that was once the sea. The rocks in the park, limestone, were deposited in the sea. After the Indosinian Movement, Yanshan Movement and Himalayan Movement, the Sichuan Basin was formed. Some mountains are formed in the basin, among which Huaying Mountain rises majestically from the northeast. At Sanhui Dam in Hechuan, it divides into three branches in a broom shape and then extends to the south-west to form Zhongliang Mountain, Jinyun Mountain and Libixia Mountain. The landform pattern that constitutes Haishi Park.