Pressure Bay is an arm of Robertson Bay

Robertson Bay

Robertson Bay is a large, roughly triangular bay that indents the north coast of Victoria Land between Cape Barrow and Cape Adare. Discovered in 1841 by Captain James Clark Ross, Royal Navy, who named it for Dr. John Robertson, Surgeon on the HMS Terror....

, 3 nautical miles (6 km) wide, lying between Cape Wood

Cape Wood

Cape Wood is a point marking the east extremity of Flat Island at the western entrance to Robertson Bay, Victoria Land. Discovered in January 1841 by Captain James Ross, Royal Navy, and named by him for Charles Wood, Esq., First Secretary to the Admiralty....

 and Birthday Point

Birthday Point

Birthday Point is a bold rock headland between Pressure Bay and Berg Bay on the north coast of Victoria Land. It was charted and named by the Northern Party, led by Victor Campbell, of the British Antarctic Expedition, 1910–13....

 along the north coast of Victoria Land

Victoria Land

Victoria Land is a region of Antarctica bounded on the east by the Ross Ice Shelf and the Ross Sea and on the west by Oates Land and Wilkes Land. It was discovered by Captain James Clark Ross in January 1841 and named after the UK's Queen Victoria...

. Charted and named in 1911 by the Northern Party, led by Campbell, of the British Antarctic Expedition

Terra Nova Expedition

The Terra Nova Expedition , officially the British Antarctic Expedition 1910, was led by Robert Falcon Scott with the objective of being the first to reach the geographical South Pole. Scott and four companions attained the pole on 17 January 1912, to find that a Norwegian team led by Roald...

, 1910-13. The Northern Party experienced great difficulty in sledging across the pressure ice fringing the shore of Robertson Bay. This pressure was caused by the adjacent Shipley Glacier

Shipley Glacier

Shipley Glacier is a glacier, 25 miles long, in the north-central Admiralty Mountains. The glacier drains the northern slopes of Mount Adam and flows along the east wall of DuBridge Range to Pressure Bay on the north coast of Victoria Land. Some of the glacier bypasses Pressure Bay and reaches...

descending to the sea ice.