To the immediate south of the islands, the Falklands Plateau is split into two by the Falklands Trough, a submarine valley that separates the plateau proper from the Scotia Arc – an underwater ridge that links Tierra Del Fuego with the Burdwood Bank (where the water is only 20 meters deep) and, further into the Atlantic Ocean/Great Southern Ocean, with a number of islands including South Orkneys, South Sandwich Islands and South Georgia.