Introduction to the Black Dragon Cave: The Black Dragon Cave is also called Jiulong Cave, and its name is "Dongtian Blessed Land". There are two giant dragons leaping up from the entrance of the cave. Entering the cave from the moon gate, there are 9 faucets sticking out, each one spraying water from its mouth. Walking further inside, there is a stone platform with a pool of clear water on it. The water from Longzui comes from here. The locals say that this water can cure all kinds of diseases, and it is actually sweet mineral water. The stone on the bottom of the cave at the back end looks like two curved and lying black dragons. According to legend, it is the living place of the Dragon King and his wife. In front of the cave is the Dragon King Hall, with a statue of the Dragon King inside.