Introduction to Ouniao: Blackfish Lake has a wide water surface, with an area equivalent to 10 West Lakes in Hangzhou. Large and small bubbles are scattered among them, with a natural environment and primitive ecology. Dozens of rare birds such as red-crowned cranes, oriental white storks, gray cranes, wild ducks, white storks, wild geese, woodpeckers, owls, and red-billed gulls live here; the waters of the lake grow with There are more than 40 kinds of wild fish including black carp, grass carp, herring, silver carp, silver carp, carp, crucian carp, and croaker.