| Platno Lake | |
| Location: | Nelson Island, South Shetland Islands, Antarctica |
| Type: | Natural lake |
| Basin Countries: | Antarctica |
| Length: | 410 m (1345.1 feet) |
| Width: | 170 m (557.7 feet) |
| Area: | 4.2 ha (10.4 acres) |
| Pushpin Map: | Antarctica |
| Pushpin Map Alt: | Location in Antarctica |
| Pushpin Map Caption: | Location in Antarctica |
Platno Lake (Bulgarian: езеро Платното|ezero Platnoto, in Bulgarian pronounced as /'ɛzɛro plɐt'nɔto/) is the 410 m long in southwest–northeast direction and 170 m wide lake on Long Beach, Nelson Island in the South Shetland Islands, Antarctica. It has a surface area of 4.2 ha and is separated from the waters of Bransfield Strait by a 40 to 110 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 sail ('platno' in Bulgarian).
Platno Lake is situated at the base of Ross Point and centred at -62.3475°N -59.1133°W,[2] which is 3.56 km southeast of The Toe and 3.4 km west-northwest of Vidaurre Point, the south extremity of the island. British mapping of the area in 1968.