Bohai Gulf

The Bohai Gulf is near the municipalities of Tianjin and Beijing, with Tianjin serving as the primary port gateway for the capital region. Major ports around the Bohai Sea include Tianjin Port, one of the largest container ports in the world, as well as ports in Hebei and Shandong provinces. The gulf is bordered chiefly by Hebei and Shandong provinces.

The Bohai Sea, of which the Bohai Gulf is a major subdivision, is a semi-enclosed body of water connected to the Yellow Sea through the Bohai Strait. It is not itself part of the Yellow Sea but communicates with it through that strait. The Bohai Sea includes three main gulfs: the Bohai Gulf (west), Liaodong Gulf (north), and Laizhou Gulf (south).

The Bohai Sea is a relatively shallow body of water, with an average depth of only about 18 metres, and the Bohai Gulf is among its shallowest parts. Much of the seafloor consists of sediment deposited by rivers such as the Yellow River (Huang He) and the Hai He. This shallowness makes large-scale navigation dependent on dredged channels, particularly at major ports like Tianjin.

The Bohai Gulf has faced serious environmental challenges from industrial pollution, heavy metals, and agricultural runoff due to the dense concentration of factories and cities along its coast. Large-scale land reclamation and overfishing have also degraded coastal ecosystems. The Chinese government has implemented cleanup plans aimed at restoring water quality, but progress has been slow given the region's economic importance.