Introduction to the Bat Cave: The entrance to the Bat Cave is narrow and can only accommodate one person crawling in. The cave is more than a hundred meters deep. The cave has seven floors and is as wide as a hall, about five or six square meters. The ground is flat and it is three or three meters high. Four meters. In the narrow place, a person still has to turn sideways, and when the height is less than one meter, he has to lie on the ground and snake.