The Kerguelen Islands (/kər.ˈɡeɪ.lən/ or /ˈkɜːr.ɡə.lən/; in French commonly Îles Kerguelen but officially Archipel Kerguelen, pronounced [kɛʁɡelɛn]), also known as the Desolation Islands (Îles de la Désolation in French), are a group of islands in the sub-Antarctic region. They are among the most isolated places on Earth, with the closest territory being the Heard Island and McDonald Islands territory of Australia located at roughly 450 kilometres (240 nautical miles), and the nearest inhabited territory being Madagascar at more than 3,300 km (1,800 nmi) in distance. The islands, along with Adélie Land, the Crozet Islands, Amsterdam and Saint Paul islands, and France's Scattered Islands in the Indian Ocean, are part of the French Southern and Antarctic Lands and are administered as a separate district.
The islands constitute one of the two exposed parts of the Kerguelen Plateau (the other being Heard Island and the McDonald islands), a large igneous province mostly submerged in the southern Indian Ocean. The main island, Grande Terre, is 6,675 km (2,577 mi) in area, about three-quarters of the size of Corsica, and is surrounded by a further 300 smaller islands and islets, forming an archipelago of 7,215 km (2,786 mi). The climate is harsh and chilly with frequent high winds throughout the year. The surrounding seas are generally rough and they remain ice-free year-round. There are no indigenous inhabitants, but France maintains a permanent presence of 45 to 100 soldiers, scientists, engineers, and researchers. There are no airports on the islands, so all travel to and from the outside world is by ship.