Montague Island is located 350 kilometres south of Sydney and 9 kilometres off the coast of Narooma. The island is 1.5 kilometres long and 500 metres wide and is designated as a nature reserve (IUCN Category IV). It is a critical seabird breeding site with more than 25,000 pairs from 12 species recorded. Around 2000 fur seals visit the island during the breeding season.
Montague Island has great cultural significance to Aboriginal people, who call it Barunguba - the elder son of Gulaga (Mt Dromedary).
The restored lighthouse and keepers cottages date back to 1881 and are now used for holiday accommodation.
The reserve was included on the ICUN Green List in recognition of successful outcomes as a result of sound planning, equitable governance and effective management.