Gilbert and Ellice Islands atolls and coral islands in the western Pacific Ocean that are recognised as part of the Micronesia subregion of Oceania. The Gilbert Islands are the main part of what is now Republic of Kiribati ("Kiribati" is the Gilbertese rendition of "Gilberts") The atolls and islands of the Gilbert Islands are arranged in an approximate north-to-south line. In a geographical sense, the equator serves as the dividing line between the northern Gilbert Islands and the southern Gilbert Islands. The Ellice Islands are south of the Gilbert Islands. The Ellice Islands comprises three reef islands and six true atolls spread out between
Pacific Ocean both the Water Hemisphere and the Western Hemisphere are in the Pacific Ocean. The equator subdivides it into the North Pacific Ocean and South Pacific Ocean, with two exceptions: the Galápagos and Gilbert Islands, while straddling the equator, are deemed wholly within the South Pacific. Its mean depth is . The Mariana Trench in the western North Pacific is the deepest point in the world, reaching a depth of . The western Pacific has many peripheral seas. Though the peoples of Asia and Oceania have traveled the Pacific Ocean since prehistoric times, the eastern Pacific was first sighted by Europeans