Highlights: The underground Grand Canyon is located 9 kilometers southwest of Lishui County. It is one of the few karst land caves that can be found in the north. The canyon walls are cut cleanly on both sides, and the stalactites gleam brilliantly under the light. It's quite a spectacle! Underground rivers flow through the cavern, some of which flow into waterfalls! You can ride through some of these rivers on a leather raft for a unique experience. The various land forms are yet another demonstration of the power of nature!