Introduction to Laojun Cave: At the end of the ground crack in Qingtian Gorge, the ground crack is closely connected to a huge cave, called "Laojun Cave". The total length of the cave is 8.3 kilometers, and the exit extends to the bank of Wujiang River. Local people have a legend that a python spirit is imprisoned in Laojun Cave, so few people have set foot there for thousands of years.