Sumatra, Indonesia
    KKM HMAS Perth

    Wreck of HMAS Perth

    Best months: Jan–Feb

    Protected Area

    KKM HMAS Perth

    Why dive here

    Wreck of HMAS Perth is a wreck dive where divers can encounter mantis shrimp. Water ranges 29-32°C, warmest April, May, June.

    Best timeJan–Feb
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeMantis Shrimp
    Water29-32°C · warmest April, May, June
    CharacterWreck dive

    The HMAS Perth wreck isn't just a dive, it’s a tangible piece of history sitting upright on the seabed off Sumatra. You drop down, and the sheer scale of this cruiser hits you. It’s a somber experience, knowing the fate of her crew in the Battle of Sunda Strait. We love exploring her gun turrets, still mostly intact, and imagining the chaos of that night. What makes the Perth special is how accessible her history feels. You can swim through parts of the superstructure, peering into what were once vital compartments. Corals have started to colonise the metal, soft dendronephthya corals and sponges adding splashes of colour to the grey steel. We've seen schools of fusiliers here, sometimes so thick they briefly block out the light filtering down from the surface. Look closely, and you’ll spot a few reef sharks patrolling the perimeter, and we’ve even come across giant groupers lurking in the shadows of the bow. It’s a dive that suits those with a deep appreciation for history and a love for exploring large, dramatic structures. Expect strong currents at times, which only adds to the adventurous feel.

    Safety Notes

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

    Today05:3717:4912h 12m daylightGolden hour 17:22

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    Conditions

    Ocean conditions, forecast and tides for Wreck of HMAS Perth

    Wreck of HMAS Perth Ocean Conditions

    Monthly averages for Wreck of HMAS Perth, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-0.93, 103.77) (179km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    31°C

    88°F · Range: 30.2–32.2°C

    Air Temperature

    26°C

    79°F

    Wind Speed

    2.5 m/s

    4.9 knots

    Atmospheric Pressure

    1010.1 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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