Grandidier Channel is a navigable channel between the west coast of Graham Land

Graham Land

Graham Land is that portion of the Antarctic Peninsula which lies north of a line joining Cape Jeremy and Cape Agassiz. This description of Graham Land is consistent with the 1964 agreement between the British Antarctic Place-names Committee and the US Advisory Committee on Antarctic Names, in...

 and the north end of the Biscoe Islands

Biscoe Islands

Biscoe Islands is a series of islands, of which the principal ones are Renaud, Rabot, Lavoisier and Watkins, lying parallel to the W coast of Graham Land and extending some in a NE–SW direction...

, extending from Penola Strait

Penola Strait

Penola Strait is a strait 11 nautical miles long and averaging 2 nautical miles wide, separating the Argentine Islands, Petermann Island and Hovgaard Island from the west coast of Graham Land. Traversed by the Belgian Antarctic Expedition under Gerlache on February 12, 1898...

 southwestward to the vicinity of Larrouy Island

Larrouy Island

Larrouy Island is an island 5 nautical miles long and 2 nautical miles wide which rises to 745 m, lying in Grandidier Channel, 4 nautical miles north of Ferin Head. Discovered by the French Antarctic Expedition, 1903–05, under Charcot, who named it for Monsieur Larrouy, at that time a French...

. First charted by the French Antarctic Expedition

French Antarctic Expedition

French Antarctic Expedition refers to several French expeditions in Antarctica.-First expedition:Yves-Joseph de Kerguelen-Trémarec was a French explorer....

, 1903–05, and named by Charcot for Alfred Grandidier

Alfred Grandidier

Alfred Grandidier was a French naturalist and explorer.From a very wealthy family, he and his brother, Ernest Grandidier , undertook a voyage around the world...

, President of the Paris Geographical Society. Charcot applied the name to the entire body of water between the mainland and the Biscoe Islands but the name has since been restricted to the navigable portion described.