Ex-HMAS Adelaide Dives - Double Boat Dive

Sydney Dive Charters operates double boat dives to the Ex-HMAS Adelaide marine reserve. The Australian navy guided missile frigate Ex-HMAS Adelaide was scuttled off Avoca on Sydney’s central coast on 11th April 2011 to create a dedicated wreck dive site and artificial reef for marine life. Since 2011 a substantial amount of marine growth has covered the wreck, this marine growth includes many types of colourful sponges and soft and hard corals.

The wreck of the Ex–HMAS Adelaide has also attracted an abundance of fish life. Large numbers of schooling Kingfish and Yellowtail, will be encountered on  the wreck, because of the protection the structure of the wreck provides.  The Ex–HMAS Adelaide is located in a marine reserve which is a no fishing zone. Giant Cuttlefish are found on the wreck and scuba divers can see large clusters of white Cuttlefish eggs hanging from the upper superstructure.

Diving The Ex-HMAS Adelaide

Your dive will start on one of the permanent moorings that are located along the length of the Ex–HMAS Adelaide. Scuba divers will descend down to the upper and bridge decks and then dive along and through the upper superstructure. The bridge deck is a great place to get some photos. Depending on the divers experience and level of certification they can explore deeper in to the lower levels of the ship, such as the engine and generator compartments.

It will take the diver many return trips to visit each deck containing the galley, crew rooms, CIC, toilets, helicopter hanger bay, engine and generator rooms, foredeck guided missile area, chart room and the wheelhouse.

Sydney Dive Charters suggested all divers use Nitrox as this will make the double dive safer and also increase the divers no deco time. We also suggest technical divers that plan to dive the Ex–HMAS Adelaide on one long dive, which can have a total run time of over hour including decompression.

The wreck has been prepared for scuba diver safety so many holes have been cut into the hull for easy entry and exit. All overhead cabling etc on each internal deck level has been removed for diver safety.

Ex–HMAS Adelaide Marine Reserve

All passengers and divers are required to obtain a permit for a fee, from the NSW Department of Industry, as this department manage the marine reserve that the Ex–HMAS Adelaide is located in. Sydney Dive Charters can arrange this on your or your group’s behalf at time of booking.

Sydney Dive Charters provides hot drinks and light snacks and spray jackets during the surface interval, we also recommends that divers bring cameras for underwater photography.

Minimum Certification – Advanced Open Water
Recommended Minimum Experience – 20 Logged Dives
Recommended Gas – Nitrox
Depth Range – 18 - 36 metres



Due to adverse weather conditions the Master can change dive sites on the day.

*** Check out our dive calendar to see availability for this dive site

*** There can be a strong surge found on the wreck at times so divers must be experienced.

*** The wreck itself was prepared for divers before she was scuttled so there are many cutouts in the hull so divers can enter and exit all areas with ease. 

*** For more information about the Ex-HMAS Adelaide site see link http://www.crownland.nsw.gov.au/__data/assets/pdf_file/0005/644702/Adelaide_PoM.pdf

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