Which sea is named after a color and is between China and Korea?

The Yellow Sea is the color-named sea between mainland China and the Korean Peninsula.

It is a marginal sea of the western Pacific Ocean and is bordered by China, North Korea, and South Korea. The sea extends roughly 960 kilometers from north to south and 700 kilometers from east to west. It is relatively shallow: its average depth is about 44 meters, with a maximum near 152 meters.

Its name refers to the golden-yellow appearance of sediment-rich water, especially material carried by the Yellow River and other major rivers. Sand and silt can give the sea a yellowish or ochre color, particularly near river mouths and during periods of strong runoff. The Yellow Sea is one of four seas whose English names use common colors; the others are the Black Sea, Red Sea, and White Sea.

A common mix-up is the Bohai Sea, which is a large gulf at the Yellow Sea’s northwestern end rather than the entire body between China and Korea. The sea is also environmentally important: coastal development and land reclamation have eliminated more than 60% of tidal wetlands around its coastline in roughly half a century.