Introduction to Santai Cave: Santai Cave is the deepest, widest and most tortuous of the 12 holes. There are famous places such as Guanyin Spring and Xiaoyoutian in the cave; there is a stone ladder on the right side of the cave, which can reach a line of sky; and there are hundreds of stone steps on the top, and the flying pavilion is lofty in the sky, which is a unique realm.