Luya Mountain in Ningwu County, Shanxi Province, is the main peak of Guanyu Mountain. There is a Luya Mountain Tianchi, which is along with Changbai Mountain Tianchi and Tianshan Tianchi, and is known as the three major Tianchi in China. In Chinese history, there have been 16 emperors who have visited Tianchi to escape the summer heat. There is a kind of carp in Tianchi, because there is a red line on the back of the back, known as red line fish, is a fine tribute in ancient times. Today, as long as you come to Tianchi, you can eat the Tianchi carp that only the emperor can eat in the past.