Antarctica is the southernmost continent, completely covered in ice. It has the coldest recorded temperature of -89.2°C. 98% of the land is covered by ice, containing 87% of the world's freshwater ice. Antarctica is surrounded by oceans and contains mountain ranges, ice shelves, subglacial lakes like Lake Vostok, and seas. The only inhabitants are scientists and tourists living in research stations, as Antarctica has no permanent residents or commercial activity.