Introduction to Bairu Spring: Bairu Spring, formerly known as Baigui Spring, is located at the northern foot of Jingshan Mountain and is a 3A-level tourist attraction. According to legend, during the Zhenyuan period of Tang Dynasty, white turtles once flowed out of the spring, hence its name. In the seventh year of Yuanyou's reign in the Song Dynasty, the poet Su Dongpo and his two sons Su Yu and Su Guo visited this place from Henan to Hangzhou. They saw the strange spring water, which was praised as "the seventh spring in the world" and left a poem "What I saw on a trip to Tushan Jingshan".