Introduction to the Changkong Plank Road: Gao Dao He Zhizhen of the Yuan Dynasty, the first generation master of the Huashan School, built it by inlaying stone nails and wooden rafters on the cliff in order to stay away from the world and practice meditation to become an immortal. There are cliffs above and below the plank road, with iron cables hanging horizontally. The road is made of stones about a foot long, and the lower part is fixed by stone pillars. Visitors come here, face the wall and belly, hold their breath and move forward. It is known as "the first danger in Huashan Mountain". Visitors passing by the Changkong Plank Road must rent a safety belt for 30 yuan. As long as it is operated properly, safety can be ensured.