Introduction to Ba Ren Yin Yang Cave: Between the two mountains and the deep valley, there is a natural Yin and Yang double-hole bridge, spanning between the two mountains, dividing the valley into two realms: one side is the ancient post station back shackle bridge, On one side is the paradise Ba tribe village. Under the double-hole Tiansheng Bridge, the right hole is a resting place and prayer place for passers-by, and it is also an important pass; the left hole is a clear canyon stream flowing through the hole. This cave is connected to other caves in Huaying Mountain and is tens of kilometers deep, reaching the Golden Cave in the valley. There are countless dark caves in the cave, which are mysterious and unpredictable.