Baa Atoll surface. The atoll is formed by 105 coral reefs, representing a reef surface of 263 km. These reef surface in 61 islands provided with vegetation, and a variable number of sandy cays (between 4 and 14). Half (38) of these islands are less than 10 hectares, constituting less than 20% of the atoll lands. The biggest island is Dharavandhoo (45,5 ha), followed by Kunfunadhoo (35 ha). The highest point, difficult to establish, can be situated in Funadhoo, with 3,19 m over the sea level. Maalhosmadulu Atoll is also considered as a good example of the rich biodiversity found in the
Johnston Atoll Johnston Atoll Johnston Atoll, also known as Kalama Atoll to Native Hawaiians, is an unincorporated territory of the United States currently administered by the United States Fish and Wildlife Service. Johnston Atoll is a National Wildlife Refuge and is closed to public entry. Limited access for management needs is only by Letter of Authorization from the U.S. Air Force and Special Use Permit from the U.S. Fish and Wildlife Service. For nearly 70 years, the atoll was under the control of the U.S. military. During that time, it was variously used as a naval refueling depot, an airbase, a nuclear