Pi Islands are two islands and several rocks which lie 1 nautical mile (1.9 km) east of the northeast end of Omega Island

Omega Island

Omega Island is an island long, which lies immediately south of Eta Island in the Melchior Islands, Palmer Archipelago. This island, the largest feature in the southeast part of the Melchior Islands, is part of what was called Île Melchior by the French Antarctic Expedition under Jean-Baptiste...

 among the Melchior Islands

Melchior Islands

Melchior Islands is a group of many low, ice-covered islands lying near the center of Dallmann Bay in the Palmer Archipelago. First seen but left unnamed by a German expedition under Eduard Dallmann, 1873-74. Resighted and roughly charted by the French Antarctic Expedition under Jean-Baptiste...

, Palmer Archipelago

Palmer Archipelago

Palmer Archipelago, also known as Antarctic Archipelago, Archipiélago Palmer, Antarktiske Arkipel or Palmer Inseln, is a group of islands off the northwestern coast of the Antarctic Peninsula....

. The name, derived from the 16th letter of the Greek alphabet, appears to have been first used on a 1946 Argentine government chart following surveys of these islands by Argentine expeditions in 1942 and 1943.