Kaska Lake (Bulgarian: езеро Каската|ezero Kaskata, in Bulgarian pronounced as /'ɛzɛro 'kaskɐtɐ/) is the 220 m long in west–east direction and 115 m wide lake on Triangulation Beach, Nelson Island in the South Shetland Islands, Antarctica. It has a surface area of 1.85 ha and is separated from the waters of Bransfield Strait by a 12 to 38 m wide strip of land. The area was visited by early 19th century sealers.[1]
The feature is so named because of its shape supposedly resembling a combat helmet ('kaska' in Bulgarian).
Kaska Lake is centred at -62.3519°N -59.0411°W,[2] which is 460 m northeast of Vidaurre Point, the south extremity of the island, and 3.24 km west-southwest of Ivan Alexander Point. British mapping of the area in 1968.