Located at the Shizi (Lion) Mountain in northern Yunfu City, Panlong Cave was given the name due to its meandering and winding tunnel, which resembles a dragon. Panlong Cave is a secondary karst cave with a history of approximately one hundred million years. It is divided into three layers: the upper one is called Tunnel to the heaven. The lower one is called Longquan underground river and the middle one is called Nine dragon corridor. Each of these layers has unique peaks and rare rocks, as well as countless stalactites and stalagmites, making the tourists feel like they are in a wonderland.