Montague Island is located 350 kilometres south of Sydney, and 9 kilometres offshore from Narooma on the south coast of NSW. The island supports around 10,000 nesting pairs of little penguins, as well as providing breeding habitats for crested terns, silver gulls and shearwaters. In addition, Australian fur seals regularly inhabit the rocky foreshores of the Island - one of the few remaining haul-out sites on the Australian coastline.
The island contains a lighthouse which has been operating since 1881 and a collection of historic buildings. It also has significance for indigenous cultural heritage.