Bohai Sea, an aa kent as Bohai Gulf, Bohai, or Bo Hai, is the innermaist gulf o the Yellae Sea on the coast o Northeastern an North Cheen. It is approximately 78,000 km2 (30,116 sq. mi) in aurie an its proximity tae Beijing, the caipital o the Fowkrepublic o Cheenae (PRC), maks it ane o the busiest seaways in the warld.