Introduction to Shigui Bay: In the south of Fairyland Source, there is a famous Shigui Bay, which is named after the many reefs in the bay that resemble turtles. "Liezi Tangwen" records: "There is a large ravine in the east of the Bohai Sea. It is bottomless and has five mountains in it, which are always drifting with the waves. God sent fifteen giant turtles to hold the five mountains motionless for the first time." After the fifteen divine turtles completed their mission, they received the emperor's permission to choose the source of the fairyland to live, and over time they turned into stone turtles.