The five-color pool is the essence of Jiuzhaigou lake. It is the smallest and richest Haizi in Jiuzhaigou. The upper part is blue, the lower part is orange-red, the left side is sky-blue, and the right side is olive-green. In the lake, aquatic plant communities such as sponge, CHAROPHYTE and fern grow, and herbaceous plants such as reed, knotweed and water wick grow. These aquatic communities have different chlorophyll depths, and can show different colors in the lake water rich in calcium carbonate. In winter, it's freezing and snowing all around, but this colorful pool is not frozen. It's amazing. On the left of Jiuzhaigou, the Wucaichi Lake is a Zhawagou, a Haizi under the Changhai Sea. Since the Rizegou on the right side is better in the morning, you can take a bus to Changhai directly after lunch, and then play from top to bottom. Five-color pond is the most beautiful sea in Zawa Valley. Autumn is certainly the best time to go. The reflection of red leaves in the sea of peacock blue forms a "five-color" color. In summer, it's pure peacock blue. If you go in spring and winter, the difference between summer and spring is that the water is a little less and the color does not change much.