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Avoca Beach prepares for traffic jams when the ex-HMAS Adelaide sinks in 32m of water.

The roadsigns are up as preparations are being made for the scuttling of the ex-HMAS Adelaide so it can be made into a recreational scuba dive wreck off Avoca Beach on the New South Wales Central Coast.

ex-HMAS scuttling road closure sign

ex-HMAS Adelaide road closure sign at Avoca Beach

Roads are being closed and parking is going to be View full article »

What wildlife could be expected to develop on the ex-HMAS Adelaide scuba dive wreck near Terrigal and Avoca beaches?

The environmental reports that examined the affect of the sinking of the ex-HMAS Adelaide off Avoca beach on the NSW Central Coast as a recreational dive wreck examined the fish of sandy areas and fish of rocky areas close to the wreck.


Sepia apama - Giant Australian Cuttlefish. Courtesy of Flickr member Flashard66

The fish of sandy areas were examined in an earlier post, but this post examines the fish that may occur on the wreck of the ex-HMAS Adelaide after scuttling off Avoca Beach. The information has been taken from the Flora and Fauna report conducted as part of the scuttling of the ex-HMAS Adelaide environmental assessment by Cardno Ecology Lab.

Fish Found in Rocky areas View full article »

ex-HMAS Adelaide wildlife. What will be seen by scuba divers after the sinking?

The answer to this question varies according to the time of year that you scuba dive the wreck, the time since the ex-HMAS Adelaide is sunk, the substrate that the ex-HMAS Adelaide lies upon and within, the organisms that were on-board the ex-HMAS Adelaide when it was sunk, the wildlife of the surrounding area and the potential of the wreck for colonisation. Also, there is potential for wildlife to come  from vessels that are travelling near the ex-HMAS Adeliade through their ballast.

What studies assessed the wildlife present at the scuttling site of the ex-HMAS Adelaide scuba diving wreck?

Two studies conducted as part of the environmental assessment for the sinking of the ex-HMAS Adelaide examined what wildlife are present at the proposed wreck location. The Marine Survey report looked at the physical and chemical characteristics of the seabed where the ex-HMAS Adelaide is to be sunk, while the Flora and Fauna report looked specifically at wildlife and the habitat of the scuttling location and surrounding areas.

Sergeant Baker found on the sand where the ex-HMAS Adelaide is to be scuttled as an artificial scuba diving reef. Courtesy of Allerina & Glen MacLarty

The ex-HMAS Adelaide will sit upon sand that is about 6m deep and if the ex-HMAS Brisbane is a guide, the ex-HMAS Adelaide is likely to settle View full article »

Will the sinking of the ex-HMAS Adelaide as a diving wreck go ahead at Avoca Beach as planned?

Opposition to the sinking of the ex-HMAS Adelaide 1.7km off Avoca Beach on the New South Wales Central Coast as a recreational scuba diving wreck is gathering momentum as local residents are extremely concerned about the possible affect that the 4000 tonne ship will have on the local environment.

A special website has been created by Avoca Beach locals to alert people of the issue and a Facebook group “Stop Toxic Ship Being Dumped In Avoca Beach” was formed on the 19th of February and to date has 2,049 members.

The sinking of the ex-HMAS Adelaide has also been featured on the local and Australia-wide press with local ABC Radio interviewing local long-time residents Dr Ian Charleton, Quintin Riley and Gary Whittaker about their concerns of the sinking of the ex-HAMS Adelaide as a scuba diving wreck.

The residents are very concerned about the potential for harmful chemicals to be leached from the ex-HMAS Adelaide ship into the beautiful Avoca Beach environment and the lack of consultation by the government with the local residents.

There are supporters of the project however, and a rival “- AGREE – HMAS Adelaide off Avoca Beach – AGREE -” Facebook group has been formed that supports the project.

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Diving Depths of the ex-HMAS Adelaide

The ex-HMAs Adeliade when it is sunk off Avoca Beach will rest in about 32m of water, and the top of the mast will only be in about 6.5m below the surface which raises the question as to whether it will be necessary to use scuba equipment to dive to the Adelaide Dive Wreck. Maybe freestyle diving without equipment may be possible to some parts of the Adelaide Dive Wreck?

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HMAS Adelaide Dive Wreck Location Revealed

The location of the ex-HMAS Adelaide dive wreck location has been revealed at Avoca Beach on the NSW Central Coast Australia.

A bouy marking the location is easily seen from the Avoca surf beach.


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