Five Flower Lake (also called the Wuhua Hai) is one of 118 lakes in Jiuzhaigou Valley Nature Reserve, located in the north of Sichuan, China. It is the most beautiful lake in the valley and is regarded as one of the wonders of Jiuzhaigou. Five Flower Lake is considered as one of the most beautiful lakes in the world due to its breathtaking colors which are a result of its lake-bottom travertine and colorful algae.