The entrance of the cave has a square cave trestle of more than 100 meters, which is also called "Yinya Gallery". There are square caves in the trestle excavated along natural rocks, so it is called square cave trestle. There are knife holes, Yuntianqiao, inverted golden bells, plum blossom holes, Juxian Pavilion and other landscapes in the trestle. The cave is not an imaginary penetrating cave. It is just a cave in the cliff. There is a temple built in the cave. From the bottom of the mountain, it looks like a square cave. In addition, Fangdong has a bridge hanging in the air. Most tourists are afraid to step, but it is also a rare experience.