Introduction to the rock crevice: The rock crevice is located in Yuanshan Village, Ganhe Township, Wangcang County. From a distance, a huge boulder is sandwiched between cliffs, crumbling in the clouds and mist. From a closer look, there is a line of sky above the head, and the two walls are indestructible. When walking along, there is no danger of being hit on the head by a big rock.