Kostilka Island (, ) is the rocky island 213 m long in west–east direction and 137 m wide in the Myriad Islands group of Wilhelm Archipelago in the Antarctic Peninsula region. Its surface area is 1.64 ha.Kostilka Island. SCAR Composite Gazetteer of Antarctica
The feature is so named because of its shape supposedly resembling a fruit's stone ('kostilka' in Bulgarian), and in association with other descriptive names of islands in the area.
Location Kostilka Island is located at , which is 3.35 km northwest of Flank Island, 3.47 km southeast of Final Island, and 6.74 km west-northwest of Vedel Islands. British mapping in 2001.
Maps British Admiralty Nautical Chart 446 Anvers Island to Renaud Island. Scale 1:150000. Admiralty, UK Hydrographic Office, 2001 Brabant Island to Argentine Islands. Scale 1:250000 topographic map. British Antarctic Survey, 2008 Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated
See also List of Antarctic and subantarctic islands
Notes
References Kostilka Island. SCAR Composite Gazetteer of Antarctica Bulgarian Antarctic Gazetteer. Antarctic Place-names Commission. (details in Bulgarian, basic data in English)
External links Kostilka Island. Adjusted Copernix satellite image