Great Nicobar Biosphere Reserve

The Great Nicobar Biosphere Reserve is a UNESCO-designated biosphere reserve covering much of Great Nicobar Island in the southern Andaman and Nicobar Islands, headquartered near Campbell Bay. Established in 1989, it encompasses Galathea and Campbell Bay National Parks. Notable for its tropical evergreen and mangrove forests, endemic wildlife including the Nicobar megapode and giant leatherback turtles, and its role in conserving one of India's most isolated and biodiverse island ecosystems.

Visitors can expect a remote, densely forested tropical landscape of evergreen rainforest, mangroves, coastal beaches and creeks. Access is highly regulated and limited to buffer zones and designated entry points near Campbell Bay with forest permission and a guide. Sightings may include endemic birds, Nicobar megapode, crab-eating macaque, and seasonal leatherback turtle nesting at Galathea Beach. There are no developed tourist facilities inside the core zone; visits involve nature walks, birdwatching and guided forest trails.