Marguerite Bay or Margaret Bay is an extensive bay on the west side of the Antarctic Peninsula, which is bounded on the north by Adelaide Island and on the south by Wordie Ice Shelf,

George VI Sound George VI Sound or Canal Jorge VI or Canal Presidente Sarmiento or Canal Seaver or King George VI Sound or King George the Sixth Sound is a major bay/ fault depression, 300 miles (483 km) long and mainly covered by a permanent ice shelf. It ...

and

Alexander Island Alexander Island, which is also known as Alexander I Island, Alexander I Land, Alexander Land, Alexander I Archipelago, and Zemlja Alexandra I, is the largest island of Antarctica. It lies in the Bellingshausen Sea west of Palmer Land, Antarc ...

. The mainland coast on the Antarctic Peninsula is

Fallières Coast The Fallières Coast is that portion of the west coast of the Antarctic Peninsula between the head of Bourgeois Fjord and Cape Jeremy and lies on Marguerite Bay and the Wordie Ice Shelf. On the south it is joined by Rymill Coast, and in the north ...

. Islands within the bay include Pourquoi Pas Island, Horseshoe Island, Terminal Island, and Lagotellerie Island. Marguerite Bay was discovered in 1909 by the

French Antarctic Expedition The French Antarctic Expedition is any of several French expeditions in Antarctica. First expedition In 1772, Yves-Joseph de Kerguelen-Trémarec and the naturalist Jean Guillaume Bruguière sailed to the Antarctic region in search of the fabl ...

under Jean-Baptiste Charcot, who named the bay for his wife.

Named features

Toadstool Rocks are a group of insular, ice-covered rocks that rise to about 250 cm above sea level in the southwest part of Marguerite Bay, east-southeast of Terminal Island. The rocks were roughly charted from RRS association with

Mushroom Island Mushroom Island in the Antarctic is an ice-covered island lying west-southwest of Cape Berteaux, off the west coast of Graham Land Graham Land is the portion of the Antarctic Peninsula that lies north of a line joining Cape Jeremy and Ca ...

and

Puffball Islands Puffball Islands () is a scattered group of small, low, mainly ice-covered islands and rocks which extend about 10 nautical miles (18 km) in a NE-SW direction, lying in southern Marguerite Bay off the west coast of Antarctic Peninsula. The cen ...

. Endurance Reef is a

reef A reef is a ridge or shoal of rock, coral or similar relatively stable material, lying beneath the surface of a natural body of water. Many reefs result from natural, abiotic processes— deposition of sand, wave erosion planing down rock o ...

in Marguerite Bay, lying west of Red Rock Ridge. The name is after HMS ''Endurance'' which at this position in February 1972 struck a rock in a depth of . The area was surveyed by boats from the ''Endurance'' in 1973 when similar depths were found up to south-southwest of the rock. Harvey Shoals () are three shoal patches located between Miller Island and Northstar Island in Marguerite Bay. They were charted by the Hydrographic Survey Unit from RRS ''John Biscoe'' in 1966, and were named for Petty Officer Brian E. Harvey, the surveying recorder who carried out all the sounding for this survey.

Named features

References

Further reading