water: 0 sq km
note: includes St. Helena Island, Ascension, and the island group of Tristan da Cunha, which consists of Tristan da Cunha Island, Gough Island, Inaccessible Island, and the three Nightingale Islands
Area - comparative: slightly more than two times the size of
Washington, DC
Land boundaries: 0 km
Coastline: 60 km
Maritime claims: exclusive fishing zone: 200 NM
territorial sea: 12 NM
Climate: Saint Helena - tropical; marine; mild, tempered by trade winds; Tristan da Cunha - temperate; marine, mild, tempered by trade winds (tends to be cooler than Saint Helena)
Terrain: Saint Helena - rugged, volcanic; small scattered plateaus and plains
note: the other islands of the group have a volcanic origin