|Other names||The Encircling Sea, The Outer Sea|
Ekkaia (also called the Encircling Sea, the Outer Sea, or the Outer Ocean) was the mighty sea that surrounded all the lands of Arda, Middle-earth and Aman alike. Its dark waters lapped the western shores of Valinor, and at its distant unknown edge stood the Walls of Night. Ulmo's halls were within the Outer Sea.
During their time in Valinor Fëanor and his sons visited the shores of these waters. The Helcaraxë was the narrow strait between the Outer Sea and Belegaer, where in the chilled waters clashed hills of ice amidst vast fogs of deathly cold.
 Other versions of the Legendarium
Ekkaia appears first time in The Later Quenta Silmarillion, replacing the earlier concept of Vaiya. In earlier works such as the Ambarkanta, Vaiya is not a sea, but an exotic material that encloses the flat Ambar, becoming air above it, and water below it. In the published Silmarillion Ekkaia is clearly mentioned only to be a sea. However in the cosmological models of The Atlas of Middle-earth (and fan-made maps), Ekkaia is conflated with the earlire concept of Vaiya, shown as an atmospheric layer that encloses the world.
 See also
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Silmarillion, "Quenta Silmarillion: Of the Beginning of Days"
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Silmarillion, "Quenta Silmarillion: Of Eldamar and the Princes of the Eldalië"
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Silmarillion, "Quenta Silmarillion: Of the Flight of the Noldor"
- ↑ 4.0 4.1 Helge Fauskanger, "Quettaparma Quenyallo" at Ardalambion (accessed 27 October 2011)
- ↑ 5.0 5.1 Robert Ireland, The Silmarillion Dictionary (C-E) at A Tolkien Dictionary (accessed 27 October 2011)
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Lost Road and Other Writings, "Part Three: The Etymologies", p. 364 (entry KHAYA-)