Tianchi (Heavenly Pool, Chinese: 天池) is the highest volcanic lake in China, and is listed in the Guinness Book of Records. The lake is known for its sublime and mysterious natural beauty. (More) Tianchi (Heavenly Pool, Chinese: 天池) is the highest volcanic lake in China, and is listed in the Guinness Book of Records. The lake is known for its sublime and mysterious natural beauty. (More)