Pacific Ocean width at about 5°N latitude, where it stretches approximately from Indonesia to the coast of Colombia—halfway around the world, and more than five times the diameter of the Moon. The lowest known point on Earth—the Mariana Trench—lies below sea level. Its average depth is , putting the total water volume at roughly . Due to the effects of plate tectonics, the Pacific Ocean is currently shrinking by roughly per year on three sides, roughly averaging a year. By contrast, the Atlantic Ocean is increasing in size. Along the Pacific Ocean's irregular western margins lie many seas, the largest of which
Middle-earth objects Númenor's eastern coast. She sometimes sailed to other harbours around Númenor. In the spring of the first ship from Númenor reached Middle-earth. This ship was "Entulessë" (Return), and she was commanded by Vëantur, the Captain of the King's Ships under Tar-Elendil, the fourth king of Númenor. In Middle-earth "Entulessë" landed in the Grey Havens, where Vëantur initiated Númenor's friendship with Gil-galad, the King of the High Elves. Vëantur subsequently made further expeditions to Middle-earth, eventually using the ship "Númerráma". "Hirilondë" (Haven-finder) was the largest ocean-going ship built by Aldarion. The vessel was constructed in the shipyards of Rómenna, the great