From Changhai by car to colorful pool. From the dense forest, suddenly turn to see a pool of blue and sparkling lake water, the mind is an exclamation mark. The lake is full of aquatic plant communities such as sponges, algae, small lizards, and herbs such as reeds, grass, and water wicks. These aquatic communities contain different chlorophyll depths, and can take on different colors in the calcium carbonate lake water. The pool is small but exquisite, blue and intoxicating, I like it very much.