Shanweipin clear lake

Pin clear lake is located in the coastal area of eastern Guangdong, in the center of Shanwei, Guangdong Province, east of Shanwei Port. It is the largest saltwater lake in Chinese mainland, the second largest in China and the second largest in Asia.

Pinclear lake, with an area of about 22 square kilometers, is a famous natural lagoon, because the bay is closed like a lake. In the late ice age, seawater invaded the depression between Shanwei and Shahai granite, forming a drowned valley bay. Later, due to the development and eastward extension of the big sand dike along the Red Bay, it was semi-enclosed as a lagoon.

With a water area of about 23. 16km2 and a coastline of 39.62 km, Pinclear lake is the largest coastal lagoon in Chinese mainland and the second largest lagoon in Asia, which contains Dinggai Lake and Yuzi Island. The famous "sea sand tongue" and the vast Pacific Ocean form the barrier of Shanwei Port in the south. Clear lake is blessed with natural conditions, a natural shelter from the wind, an important fishery breeding and salt-producing area, a "life lake" in Shanwei Port, and known as the "mother lake" in Shanwei.

However, with the acceleration of urban development, the increase of urban population and the lag of urban sewage pipe network construction, most domestic sewage and industrial wastewater are discharged into clear lake without treatment. The disorderly overexploitation of marine resources and the lack of scientific planning in urban construction have led to serious pollution of coastal waters in clear lake, degradation of ecosystems and poor integrity and systematicness of lakeside landscape.