Sea Lion Tarn (, ) is a freshwater tarn with an area of located between Sea Lion Glacier and the north-western slopes of Atlantic Club Ridge on Hurd Peninsula in eastern Livingston Island in the South Shetland Islands, Antarctica. The lake drains westward through a 100 m creek into South Bay.
The feature takes its name from the adjacent Sea Lion Glacier.
Location The midpoint is located at (Bulgarian mapping from a 1995-1996 ground survey).
Maps L.L. Ivanov. Livingston Island: Central-Eastern Region. Scale 1:25000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 1996. L.L. Ivanov et al. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands. Scale 1:100000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 2005. L.L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands . Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009. Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly updated. L.L. Ivanov. Antarctica: Livingston Island and Smith Island. Scale 1:100000 topographic map. Manfred Wörner Foundation, 2017.
References Sea Lion Tarn. SCAR Composite Antarctic Gazetteer Bulgarian Antarctic Gazetteer. Antarctic Place-names Commission. (details in Bulgarian, basic data in English)
External links Sea Lion Tarn. Copernix satellite image