Introduction to Swan Cave: Swan Cave is a strange cave that combines horizontal corridor type and vertical shaft layered type. The cave is divided into three floors: upper, middle and lower, with 7 halls at the front and back with 49 large scenes, and countless small halls and scenes. The floors are connected and the halls are connected. The cave is filled with stalactites, stalagmites, overlapping peaks and mountains, and reflections in lakes and pools.