Introduction to Wandering Cave: Opposite to Feilong Cave across a stream, there is an artificial overpass in the middle. The entrance of the cave is in a dangerous terrain. One man can guard the gate and no one can open it. The cave is more than 100 meters long. The cave body is wide and deep, with large and small branches. The caves are criss-crossed, connecting each other to the left and right and occupying a commanding position.