Truly uninhabited islands exist—remote, harsh, or protected.
~60 km². Sentinelese (uncontacted, hostile). Illegal to approach (3 nm exclusion). Indian Navy enforces.
49 km², subantarctic, 93% glacial. 1,700 km from Antarctica, 2,600 km from SA. Most remote island on Earth. Nature reserve.
156 km², volcanic, 95% ice. Bellingshausen Sea. Claimed by Norway (1929), Antarctic Treaty suspends. No landing since 1987.
562 m volcanic stack, 20 km SE of Lord Howe. World's tallest sea stack. Dryococelus australis (Lord Howe stick insect) rediscovered 2001. Climbing banned.
9 km² atoll, E Pacific, 1,000 km from Mexico. Guano mined 1890s–1917. Abandoned. Occasional scientific visits. Sharks, crabs, masked boobies.
UNESCO. 37 km² raised coral atoll. Pristine ecology—4 endemic birds, 10 plants. Plastic pollution (highest density on Earth).
55,247 km²—world's largest uninhabited island. High Arctic. Mars analog (Haughton Crater). NASA tests rovers. Muskox, lemmings.
Extreme isolation, climate, lack of freshwater, legal protection, or Indigenous exclusion keep humans away.