Arena Glacier is a glacier

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 3 miles (5 km) long, flowing northeast from Mount Taylor

Mount Taylor (Antarctica)

Mount Taylor is a large, flat-topped mountain, high, having steep cliffs on the north-east side, standing west-southwest of the head of Hope Bay at the north-east end of the Antarctic Peninsula. It was discovered by the Swedish Antarctic Expedition, 1901–04, under Otto Nordenskiöld...

 into Hope Bay

Hope Bay

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

 2 miles (3 km) southwest of Sheppard Point

Sheppard Point

Sheppard Point is a point marking the north side of the entrance to Hope Bay, at the northeast end of Antarctic Peninsula. Discovered by a party under J. Gunnar Andersson of the Swedish Antarctic Expedition, 1901–04, who wintered at Hope Bay in 1903. Named by the Falkland Islands Dependencies...

, at the extremity of the 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...

. It was mapped in 1948 and 1955 by the Falkland Islands Dependencies Survey and so named by them because the flat ice floor of the glacier's upper half, surrounded by the steep slopes of Twin Peaks

Twin Peaks (Antarctica)

The Twin Peaks are two sharply defined peaks, high, standing together north of Mount Taylor and west of the head of Hope Bay at the north-east end of the Antarctic Peninsula. They were discovered by the Swedish Antarctic Expedition, 1901–04, under Otto Nordenskiöld, and named by the...

, Mount Taylor and Blade Ridge

Blade Ridge

Blade Ridge is a sharp rock ridge marked by three peaks, the highest at , forming the northwest wall of Depot Glacier near the head of Hope Bay, in the northeast part of Trinity Peninsula. It was discovered by the Swedish Antarctic Expedition, 1901–04, under Otto Nordenskiöld...

, resembles an arena.