

Best for advanced divers, 13-37m, boat entry, moderate current.
The ex-HMAS Adelaide is a purpose-sunk decommissioned warship located 1400 metres off Copacabana. The wreck sits at depths ranging from 13 to 37 metres, with an average depth of 33 metres. This site is for advanced divers only, requiring boat access. Conditions are variable, with visibility between 5 and 40 metres and currents ranging from 0 to 3 knots. The structure presents significant hazards, including overhead environments, entanglement risks, and surge. Note that the site was closed in July 2024 due to structural damage and collapse from storm events, which created extreme risks of entrapment and crush injuries. Diving is currently not permitted at this location.
-33.46240, 151.45420
Time your dive around slack water to manage the current and extend your bottom time on the deeper sections. Decompression planning is essential before you splash, as the 37-metre stern will eat your no-deco limits faster than you expect.
The site is accessed by boat, typically departing from Terrigal Haven boat ramp. It is located 1.8km offshore from Avoca Beach.
Recorded at this site
Depth
13-37m
Visibility
5-40m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
18-22°C
Current
Moderate
Typical Dive
40 min
Best Time
Year-round
No, the site was closed in July 2024 due to significant structural damage and collapse, making it unsafe for diving.
The wreck lies at depths between 13 and 37 metres, with an average depth of 33 metres.
No, this is an advanced dive site due to the depth, potential for strong currents, and overhead environments.
Access is by boat only, located 1400 metres offshore.
The site is accessible year-round from January through December, provided it is open to the public.
Diving at Ex Hmas Adelaide in Terrigal requires the following certifications: Advanced. Always dive within your training limits.
A 5mm wetsuit is recommended for diving at Ex Hmas Adelaide in Terrigal. Water temperatures range from 18°C to 22°C.
Expect moderate currents at Ex Hmas Adelaide in Terrigal. Good buoyancy control and some drift diving experience is helpful.
Visibility at Ex Hmas Adelaide in Terrigal typically ranges from 5 metres to 40 metres. Conditions vary with weather, tides, and seasons.