Where is the place to drink Mahai?

Drinking horses in the sea refers to Lake Baikal. Ma Yin Han Hai means a rich lake, which refers to Lake Baikal, also known as the North Sea. Historically, Lake Baikal was the home of many nomadic peoples such as Xiongnu, Xianbei, Turkic, Mongolia and Qidan. According to the biography of Han Su Wu, Emperor Wu ordered Wei Qing and Huo Qubing to lead fifty thousand cavalry and hundreds of thousands of infantry to go deep into Mobei and defeat the main force of Xiongnu. Huo Qubing led an army more than 2,000 miles north, crossed the back hill, crossed the river, engaged with the left part of Xiongnu, annihilated 70,400 people, and forced them to hunt wolves in Xushan. After the sacrificial ceremony was held in Xushan, the wolf lived in Xushan.