Tabarin Peninsula is a peninsula

Peninsula

A peninsula is a piece of land that is bordered by water on three sides but connected to mainland. In many Germanic and Celtic languages and also in Baltic, Slavic and Hungarian, peninsulas are called "half-islands"....

 15 nautical miles (28 km) long and 5 to 12 nautical miles (22 km) wide, lying south of the trough between Hope Bay

Hope Bay

Hope Bay on Trinity Peninsula, is long and wide, indenting the tip of Antarctic Peninsula and opening on Antarctic Sound....

 and Duse Bay

Duse Bay

Duse Bay is a bay indenting the south side of Trinity Peninsula between View Point and the west side of Tabarin Peninsula. It was discovered by a party under J. Gunnar Andersson, of the Swedish Antarctic Expedition, 1901-04. Duse Bay was named by Nordenskjold, leader of the Swedish Antarctic...

 and forming the east extremity of Trinity Peninsula

Trinity Peninsula

Trinity Peninsula is the extreme northern portion of the Antarctic Peninsula, extending northeastward for about from a line connecting Cape Kjellman and Cape Longing. Dating back more than a century, chartmakers used various names for this portion of the Antarctic peninsula, each name having some...

 in the Antarctic Peninsula

Antarctic Peninsula

The Antarctic Peninsula is the northernmost part of the mainland of Antarctica. It extends from a line between Cape Adams and a point on the mainland south of Eklund Islands....

. Discovered and charted by 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, under Nordenskjold. It was mapped in 1946 by the Falkland Islands Dependencies Survey (FIDS) and named after Operation Tabarin

Operation Tabarin

During World War II, Operation Tabarin was a small British military expedition launched from the UK in 1943 to the Antarctic to establish permanently occupied bases.-Reasons for the expedition:There were several reasons for Tabarin...

, the naval code name for the FIDS from 1943 to 1945.