Atoll Atoll An atoll (, , , , or ), sometimes called a coral atoll, is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely. There may be coral islands or cays on the rim. The coral of the atoll often sits atop the rim of an extinct seamount or volcano which has eroded or subsided partially beneath the water. The lagoon forms over the volcanic crater or caldera while the higher rim remains above water(s) or at shallow depths that permit the coral to grow and form the reefs. For the atoll to persist,
Shaviyani Atoll of Milandhoo. This decision was vetoed by President Nasheed, and Milandhoo continued as the seat of the atoll office. The issue surfaced once again on February 26, 2011 when home rule was introduced into the country and the atoll offices were to be rebranded as the secretariats for the newly formed atoll councils. According to the Decentralization Bill, under which the councils were formed, the respective secretariats were to be seated in the capital islands of each atoll as stipulated in the new constitution of 2008, which in Shaviyani Atoll's case is Funadhoo. In the first atoll council meeting, it