Introduction to Banbiandu: Banbiandu has three wonders that are amazing. The stone wall is as steep as a knife, fifty or sixty meters high and about two hundred meters long. It is majestic and extremely spectacular. This is one of the wonders; it is also on the same bank. It requires a ferry and a transition to Langzhou Village on the other side, forming a landscape with three piers on both sides of the river. It is called a triangle ferry, which is two wonders; on the smooth cliffs, the stone patterns are mottled, resembling various animals, and there is a "Zhang Guo" The image of the old man riding a donkey backwards is realistic and lifelike. Between the cracks in the rocks, vegetation grows on the sides of the walls, as if they were made by magical powers. These are the three wonders.