Under the waterfall is the deep pool, the name is black dragon pool, the pool water is green and deep, the cold air hits people, the fog is confused, such as the fairyland. As autumn, the sky is high and the clouds are light, the forest is dyed, the mountains are red, the blue sky, white clouds, and the red, yellow, blue, green, orange "Wuhua Mountain" reflected on the black dragon pool, the pool water will immediately be illusioned into a strange, magnificent "colored lake".