Lagoon Isles is a term used to describe a group of atolls, which are ring-shaped coral reefs that form around a central lagoon. Atolls are typically found in tropical regions and are made up of coral, sand, and other sedimentary material. They are home to a variety of marine life, including fish, turtles, and seabirds. The term Lagoons Isles is often used to refer to the many atolls located in the Pacific Ocean.