Six. There are six ports in the North Sea. The first deep-water port is located at the junction of Dijiao and Koutouling, the second deep-water port is located between Dijiao and Waisha Bridge, the third deep-water port is located between Koutouling of Nanhuan Village, the fourth deep-water port is located at Huaqiao between huaqiao town and Yintan, the fifth deep-water port is Shishupu and Kuihai Bridge, and the sixth deep-water port is located between Chuanjiang, Binning, Huangshao and Tang Bin, that is, Beihai. Beihai is a famous historical and cultural city in China, and it is also the only coastal city in the west of China that has been listed in the first batch of cities 14 for further opening to the outside world.