Southern Maalhosmadulhu Atoll, Maalhosmadulhu South or Baa Atoll is an administrative division of the Maldives. It consists of two separate natural atolls, namely the southern part of Maalhosmadulhu Atoll (which is 42km long and 32km wide and consists of 10 inhabited islands) and the smaller natural atoll known as Goifulhafehendhu Atoll (Horsburgh Atoll in the Admiralty charts).