Wreck of HMAS Australia
Protected Area
Cabbage Tree Bay
Why dive here
With 199+ marine species recorded in the area - including blue sharks, bull sharks, dolphins, dugongs and great white sharks - Wreck of HMAS Australia offers some of Sydney & New South Wales's richest wreck diving. Water ranges 18-23°C, warmest January, February, March.
The HMAS Australia wreck isn’t your typical accessible dive, but for those who manage the trip, it’s a real deep-water reward. We’re talking about a massive, proud battlecruiser sitting upright on the seabed, a proper ghost ship. Dropping down, you start to make out the sheer scale of it, and we love how the structure is still so intact, almost as if it’s waiting for its crew. Visibility can be a real crapshoot out here, but on a good day, the sight of those huge guns and the bridge structure emerging from the blue is incredible. You'll often find schooling kingfish circling the superstructure, and we’ve seen some massive Queensland groper lurking in the shadows of the engine room access points. Exploring the deck, you're looking for remnants of its past, and the sheer amount of history sinking into the sand is palpable. This one’s definitely for experienced wreck divers comfortable with deep profiles and a bit of planning. Our top tip? Go with a charter that knows the currents and can time the slack water just right. It makes all the difference.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Nearest Dive Centres to Wreck of HMAS Australia
Dive shops near Wreck of HMAS Australia
Dive Centre Manly
Eunoia Freediving
Dive Centre Bondi
Pro Dive
Reviews for Wreck of HMAS Australia
Conditions
Ocean conditions, forecast and tides for Wreck of HMAS Australia
Wreck of HMAS Australia Ocean Conditions
Monthly averages for Wreck of HMAS Australia, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-33.18, 151.63) (7km away)
October Averages
Sea Temperature
20°C
67°F · Range: 18.5–20.7°C
Air Temperature
17°C
63°F
Wind Speed
5.95 m/s
11.6 knots
Atmospheric Pressure
1016.2 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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