Chang Kong Cliff Road, Wooden plank path on Mount Hua, Shaanxi, China.

Chang Kong Cliff Road is a narrow wooden plank walkway bolted directly into the sheer rock face of Mount Hua's South Peak in Shaanxi, China. The boards run horizontally along the cliff, suspended high above a deep valley with no railing on the outer side.

The walkway is believed to have been created in the 13th century, during the Yuan Dynasty, by followers of He Zhizhen, the first master of the Mount Hua Sect of Taoism, who were seeking immortals believed to dwell in the mountains. The boards are nailed together and fixed on iron pegs driven into the cliff, and some sections are cut into the cliff rock.

The Chang Kong Cliff Road runs along Mount Hua, one of China's Five Sacred Mountains, which has been a center of Taoist practice for centuries. Visitors today still share the path with pilgrims who come to reach the small temples and shrines carved into the rock.

The walkway is reached by climbing steep stairs, and once you set out you must continue to the far end, since the path is too narrow for two-way traffic. Safety harnesses are required because fatalities have occurred. The route is walked in winter too, and many cross at night to reach the viewpoint by sunrise.

The walkway is one-way in practice: once a walker sets out, the narrowness of the boards makes two-way traffic impossible, so there is no turning back until the end. Many visitors cross it at night to reach the viewpoint in time for sunrise, and the route is used in winter as well.