Archaeology
An archaeological expedition by members of the Western Australian Museum was made to the island in 1974.
Gun Island is classified as having 'High' conservation significance and is one of the seven protected zones in the Abrolhos Islands. Protected zone restrictions mean that "visitors shall not carry out any digging or major earthworks within the zones around declared maritime archaeological sites unless permitted to do so", and that they shall also not take metal detecting devices onto the island.
A 20 metres (66 ft) wide rock called "Gun Islet" is situated about 30 metres (98 ft) off the southern tip of the island.
Read more about this topic: Gun Island