Enshi Tenglong Cave.

Enshi Tenglong Cave is the largest known cave in China and one of the world's top caves. It is located in Lichuan City, Hubei Province, only 4 kilometers from the city. Tenglong Cave is known for its huge cave system. The entire cave group has five layers, and the total length of the known caves is 59.8 kilometers, with a total area of more than 2 million square meters. The cave entrance is 72 meters high and 64 meters wide, which is very spectacular. Tenglong Cave Scenic Area is a national geological park and a national 5A tourist attraction. The scenic area covers an area of 69 square kilometers, integrating mountains, water, caves, and forests, and is famous at home and abroad for its majesty, danger, strangeness, seclusion, and beauty. There are 5 peaks in the cave, 10 halls, more than 10 underground waterfalls, mountains in the cave, caves in the mountains, and water caves and dry caves are connected, forming a huge and majestic cave landscape.