Mercer Bay is a small bay

Bay

A bay is an area of water mostly surrounded by land. Bays generally have calmer waters than the surrounding sea, due to the surrounding land blocking some waves and often reducing winds. Bays also exist as an inlet in a lake or pond. A large bay may be called a gulf, a sea, a sound, or a bight...

 marked by Geikie Glacier

Geikie Glacier

Geikie Glacier is a glacier which flows northeast to Mercer Bay, at the southwest end of Cumberland West Bay, South Georgia. First charted by the Swedish Antarctic Expedition, 1901–04, under Nordenskjold, who named it after Sir Archibald Geikie , noted Scottish geologist and Director-General of...

 at its head, at the southwest end of Cumberland West Bay

Cumberland West Bay

Cumberland West Bay is a bay forming the western arm of Cumberland Bay, South Georgia. It is entered southward of Larsen Point, where it is wide, and extends in a southwest direction. This feature was surveyed by the Swedish Antarctic Expedition, 1901–04, who named it West Bay. It was remapped...

, South Georgia. The bay appears on a sketch map of Cumberland Bay

Cumberland Bay

Cumberland Bay, wide at its entrance between Larsen and Barff Points, which separates into two extensive arms that recede inland along the northern coast of South Georgia. Discovered and named in 1775 by a British expedition under James Cook....

 by Lieutenant S.A. Duse of the Swedish Antarctic Expedition

Swedish Antarctic Expedition

The Swedish Antarctic Expedition was led by Otto Nordenskjöld and Carl Anton Larsen.-Background:Otto Nordenskjöld, a Swedish geologist and geographer, organized and lead a scientific expedition of the Antarctic Peninsula...

, 1901-04. The name is first used on a chart based upon survey work by DI

Discovery Investigations

The Discovery Investigations were a series of scientific cruises and shore-based investigations into the biology of whales in the Southern Ocean. They were funded by the British Colonial Office and organised by the Discovery Committee in London, which was formed in 1918...

 personnel in 1926-30. Probably named for Lieutenant Commander G.M. Mercer, Royal Navy Reserve, captain of the DI research ship William Scoresby

William Scoresby

William Scoresby , was an English Arctic explorer, scientist and clergyman.-Early years:Scoresby was born in the village of Cropton near Pickering 26 miles south of Whitby in Yorkshire. His father, William Scoresby , made a fortune in the Arctic whale fishery...

, which engaged in whale marking and oceanographic work off South Georgia in 1926-27.