Esther Harbour is a small harbour at the west side of Venus Bay

Venus Bay

Venus Bay may refer to:In Australia* Venus Bay, South Australia* Venus Bay, VictoriaIn New Zealand* Venus Bay, Auckland Islands...

, lying immediately west of Pyrites Island

Pyrites Island

Pyrites Island is the largest of three small islands lying southeast of Gam Point and forming the east side of Esther Harbor, off the north coast of King George Island in the South Shetland Islands...

 and south of Gam Point

Gam Point

Gam Point is a rocky point 2 nautical miles southeast of False Round Point on the north coast of King George Island, in the South Shetland Islands. The point is one of the features named Pyritic or Esther Islands by Scottish geologist David Ferguson in 1913-14...

, on the north coast of King George Island in the South Shetland Islands

South Shetland Islands

The South Shetland Islands are a group of Antarctic islands, lying about north of the Antarctic Peninsula, with a total area of . By the Antarctic Treaty of 1959, the Islands' sovereignty is neither recognized nor disputed by the signatories and they are free for use by any signatory for...

. The harbour was known to both American and British sealers as early as 1821. The sealing vessel Esther (Captain Low) of Boston worked in this area in the 1820-21 season.