Tuamotus

The Tuamotus, also called the Tuamotu Archipelago, are a French Polynesian chain of just under 80 islands and atolls in the southern Pacific Ocean, forming the largest chain of atolls in the world and spreading over an area roughly the size of Western Europe despite a combined land area of only about 850 square kilometers. Major islands in the group include Rangiroa, Anaa, Fakarava, Hao and Makemo, with a population of about 16,000. Every island in the chain is a coral low island, essentially a sand bar built up on a coral reef, and the group is associated with the weakly active Easter fracture zone. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/