Johnston Atoll and biological weapons testing site, a secret missile base, and a chemical weapon and Agent Orange storage and disposal site. These activities left the area environmentally contaminated and remediation and monitoring continue. The Johnston Atoll is a deserted atoll in the North Pacific Ocean located about southwest of the island of Hawai'i and is grouped as one of the United States Minor Outlying Islands. The atoll, which is located on a coral reef platform, has four islands. Johnston (or Kalama) Island and Sand Island are both enlarged natural features, while "Akau" (North) and "Hikina" (East) are two artificial islands formed
Southern Nilandhe Atoll become a popular location for SCUBA diving. Some of the islands in this atoll have remains from the Buddhist period, but none of them have been properly excavated yet. Southern Nilandhe Atoll Southern Nilandhe Atoll, Nilande Atoll South or Dhaalu is one of the atolls of the Maldives. It corresponds to the natural atoll of the same name. It stretches from east to west, and north to south. Out of a total of 56 islands, eight of the islands are inhabited, with a total population of around 6694. The capital island is Kudahuvadhoo, located at the atoll's southern tip. Hulhudheli