A strait that runs between South Korea and Japan, connecting the East China Sea and the Sea of Japan. It is divided into the Western Channel and the Tsushima Strait.

A marginal sea of the Pacific Ocean located between mainland China and the Korean Peninsula. It is named for the golden-colored sediment carried by the Huang He (Yellow River).

A marginal sea of the Pacific Ocean, forming the western part of the East Asian continental sea. It is bordered by China, Taiwan, Japan, and the Korean Peninsula.