Fuxian Lake and Xingyun Lake
The Fuxian Lake is the second largest deep freshwater lake in China. Its water surface covers 212 square kilometres and reaches a depth of 155 metres. The storage capacity of this lake is 12 times that of the Dianchi Lake and 6 times that of the Erhai Lake. The water in the lake is crystal clear and appears to be blue-green. From a boat you can see fish swimming seven metres beneath the surface. In the southern mountains, the 1-kilometer Haimen River joins Fuxian and Xingyun Lakes in Jiangchuan County. A stone marking the boundary of the two lakes is called the "Fish Boundary", as big-headed fish (Cypinus pellegrini) in the Xingyun Lake and the Kanglang fish (Anabrarilinus grahami) in the Fuxian Lake both swim to this rock, but never pass it to enter the other lake.
Although the big-headed fish from the Xingyun Lake has a delicious taste, it is not as famous as the Kanglang fish from the Fuxian Lake. As early as Emperor Kangxi's time in the Qing Dynasty, the Kanglang fish was considered a suitable gift for emperors.