Who / What
The South Shetland Islands are a remote group of Antarctic islands located in the Drake Passage.
They cover an area of 3,687 km² (1,424 sq mi) and lie roughly 120 km (65 nm) north of the Antarctic Peninsula.
Under the Antarctic Treaty of 1959, the islands’ sovereignty is neither recognized nor disputed by signatory nations.
Background & History
The South Shetland Islands were first identified as a distinct group of islands by early explorers.
In 1959 the islands fell under the provisions of the Antarctic Treaty, which set aside all territorial claims.
The Treaty established the islands as a shared scientific and peaceful zone, resulting in ongoing international research activities.
Since then, various countries have conducted geological and climatological surveys, contributing to the islands’ known geography.
Why Notable
The islands’ strategic location in the Drake Passage makes them a key site for studying Antarctic marine ecosystems and global ocean currents.
Their unclaimed status under the Antarctic Treaty allows for multinational scientific collaboration, fostering advancements in polar research.
The region’s unique biodiversity, including penguin colonies and seals, has attracted significant ecological documentation.
Data collected here help track climate change impacts on polar habitats worldwide.
In the News
Recent studies have highlighted increasing sea‑ice melt around the South Shetland Islands, underscoring their relevance to climate change assessments.
International research teams continue to monitor glacial activity, with new satellite observations released in 2025.
These findings reinforce the islands’ role as a sentinel for Antarctic environmental changes.
