Introduction to the Notre Dame Cave: The Notre Dame Cave at the foot of the hillside is a curved stone arch cave made of bluestone. It faces south and faces north, with four blue brick square columns supporting the vault. In the middle is the doorway leading into the cave, which is 2 meters high and about 4 meters wide. The area of ​​the cave is about 20 square meters. During the "Cultural Revolution", the cave was also completely demolished and later rebuilt in 1986.