Introduction to the Ancient Road of the Qin People: When Lu, Hou Ersheng and Tan Zhenren were practicing in Yunshan, they opened a passage up the mountain, starting from Buyunting and ending at Yunshan Hall. The mountain road is 3.5 kilometers long and 1.2 meters wide. It is paved with light green stone slabs and winds steeply against the rocks. Along this road to the top of Yunshan Mountain, you will sometimes face a deep ravine and sometimes a sea of ​​floating clouds, which makes you feel as if you are drifting away. You can also have a panoramic view of the scenery of Yunshan Mountain.