Addu Atoll is the southernmost atoll of the Maldives, and the only atoll fully located in the Southern Hemisphere. There are not many islands in this atoll, but many of them are large compared to the average size of islands in the Maldives. Most inhabited islands in Addu are in the western reef and these are Hithadhoo, Maradhoo, Feydhoo, Gan. All these islands are connected with each other through a road or causeway. The islands of Meedhoo, and Hulhudhoo share a large island in the east. The total population of Addu Atoll is just over 28,000. ( source Wikipedia )