Xingkai Lake, Manchu, was originally an inner lake in China. 1860 After China and Russia signed the Beijing Treaty, it became the boundary lake between China and Russia. Heilongjiang Province belongs to the southeast, China to the north and Russian to the south. It covers an area of 4380 square kilometers. It began to freeze in February. 10? 6? The lake was completely frozen in 5 15 days. From the end of February to the beginning of March, the ice layer is 0.9 meters thick. Thaw in the middle and late April. There are many swamps around the lake, and there is a lot of silt and humus at the bottom of the lake. The lake is turbid and the transparency is only 60 cm. The lake flows out from the vicinity of Longwang Temple in the northeast, into Songgacha River and into Wusuli River. Rich in fish. It is a national (AAA-level) resort for vacation, health care and tourism, and is known as "Oriental Hawaii". The rare original ecological wetland environment has become an ideal country in the photographer's mind, and it is also the location shooting base for film and television dramas.