Introduction to the second cave hall: The terrain is rugged, with endless pits and valleys, and dangerous rocks and steep walls. There are three pits inside the cave hall, and an underground river is exposed at the bottom of the pit. During the rainy season, the water flows gurgling and gurgling. The stone scenery in the cave is divided into two parts: the front part and the back part. The front part is the dragon palace hall, and the back part is the lion hall.