Introduction to the Tianmen Cave Cable Bridge: The Tianmen Cave Cable Bridge has a total length of 180 meters (main span 140 meters) and a bridge width of 2.5 meters. The design safety level is Level 2, and the number of people passing through is limited to 350. The cable bridge starts from the "Copper Wall and Iron Wall" and flies from the "Tianmen Cave" across the famous scenic spot "Feng Pass" in a powerful manner.