Swan cave is a cave containing stalactites and strange cave discovered in BE 2537. Khao Nan National Park. The cave has a stream flowing through the cave. Before flowing into the underground streams to external stalactites shaped lot. And the effect is. A waterfall in a cave over 5 floors.Along a distance of about 300 meters and there are bats living in the cave are many. Cave is the ideal for the study of the origin of the stone as well. In the rainy season. There is no flood. Suitable for tourism.Swan inside this cave Hours.08:00 to 16:00.