Introduction to Pangjuan Cave: Located halfway up Yunmeng Beishan Mountain, Maosui Cave faces each other far away. It is about 1.5 meters high, 2 meters wide and 3 meters deep. Legend has it that this cave was the cave where Pang Juan lived in retreat. The entrance to the cave was overgrown with weeds and inaccessible. A demon town tower was built in front of the cave. Legend has it that Gui Guzi built it to prevent Pang Juan from becoming a villain again.