Introduction to Tiangong Cave: is located on Mutou Island, 20 meters above sea level, with a total area of ​​3,000 square meters and consists of three sub-caves. Tiangong Cave has colorful and giant stone milk formed over millions of years. In particular, there is the image of the Dragon King and its cultural connotation of benevolent legends. It is as brilliant and beautiful as a palace in the sky.