The HMAS Adelaide is the largest wreck dive in New South Wales, Australia and is located within driving distance of Sydney.

The HMAS Adelaide was purposely sunk and gutted in 2011, to develop an artificial reef specifically for recreational diving and conservation. The warship is 138 metres long and was part of the Australian navy. It was sunk to a level of 32 metres allowing all level of divers access to the wreck. Before it was sunk, special measures were taken to ensure the dive would be as safe as possible.

To ensure that divers can easily penetrate and search through most parts of the hull, entry holes were made deliberately along the side of the boat.

Divers will be able to see many parts of the ship and the crew’s mess area, bathrooms, and bunks are easily identifiable. Key parts of the boat such as the captain’s chair, the control rooms, the weapons, the maps tables, and other tables are all easily discovered. As it is a relatively new artificial reef, the marine life is slowly taking hold of the wreck. As time goes on, more and more corals, sponges, fish and other life forms will gradually make this wreck their home.