Mouths of Anduin

"And Ethir Anduin he saw, the mighty delta of the River, and myriads of sea-birds whirling like a white dust in the sun, and beneath them a green and silver sea, rippling in endless lines."

- The Fellowship of the Ring The Mouths of Anduin, also called Ethir Anduin, is a biome located in southern Gondor where the Great River, Anduin, flows into the Sea. It is a marshy biome and is mostly uninhabited.