15-30m
    Comino, Malta

    HMS Cornwallis

    Best months: Jul–Sep

    Why dive here

    HMS Cornwallis is a reef dive where divers can encounter dolphins, ocean sunfish (mola mola) and sea turtles. Water ranges 16-28°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeDolphins, Ocean Sunfish (Mola Mola) and Sea Turtles
    Water16-28°C · warmest July, August, September
    CharacterReef dive · max 15-30m

    The HMS Cornwallis is a bit of a mystery, but one we’re always happy to explore. We’re talking about a proper battleship, a Duncan-class pre-dreadnought, that went down in 1901. You’re not getting a perfectly preserved time capsule here; she’s broken up, scattered across the seabed off Comino, but that’s part of her charm. We love tracing the distinct shapes of her hull plates and massive boiler sections, imagining the sheer scale of the vessel when she was whole. Visibility is often excellent, letting you appreciate the sheer size of the debris field. Keep an eye out for loggerhead turtles; they’re known to cruise by, unbothered by divers. Our favourite moments are finding the more intact sections, where schools of damselfish hover, and the occasional octopus peeks from a crevice. It’s a dive for those who enjoy piecing together history from scattered remains, rather than swimming through an intact ghost ship. We’d suggest a good dive light to really pick out the details in the deeper sections and bring out the colours on the encrusting sponges. Strong currents can be a factor here, so check conditions before you drop.

    Typical HMS Cornwallis Dive Profile

    5m10m15mSafety Stop0m15m max~50 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today06:0217:3111h 29m daylightGolden hour 16:57

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    Conditions

    Ocean conditions, forecast and tides for HMS Cornwallis

    HMS Cornwallis Ocean Conditions

    Monthly averages for HMS Cornwallis, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (35.92, 14.5) (0km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    24°C

    75°F · Range: 22.1–26.4°C

    Current Speed

    2.24 cm/s

    Direction: SE (116.6°)

    Salinity

    37.95 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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