The Eltheric Ocean is the large body of water west of Tamriel. It contains islands and island groups of Yokuda, Summerset Isles, Pyandonea, Thras, the Sestres, Cespar, Herne, and Stros M'kai. It meets the Padomaic Ocean in the east and encompasses the Abecean Sea, Azurian Sea, and the Sea of Ghosts.