10m
    Cornwall & Devon, United Kingdom
    Cuckoo Rock to Turbot Point

    ARDANGORM

    Best months: Jul–Sep

    Protected Area

    Cuckoo Rock to Turbot Point

    Why dive here

    With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - ARDANGORM offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 176+ species recorded
    Water10-18°C · warmest July, August, September
    CharacterWreck dive · max 10m
    StandoutExceptional marine biodiversity

    The Ardjangorm, just off the Cornish coast, is one of our favourite shallow wrecks. We love its accessibility, sitting at a comfortable 10 metres. It’s perfect for divers who want to spend time truly exploring a wreck rather than just flying over it. The ship was a steam merchant that went down in 1940 after hitting the Gwineas Rocks in thick fog. You can still see significant sections of her hull and machinery spread across the seabed, giving a real sense of the force involved in the wrecking. Entry can be a little choppy on windy days, so pick your weather. Once you're down, though, the current usually isn't a problem. What truly makes the Ardjangorm special is the sheer density of life that has colonised the twisted metal. We often find conger eels tucked into the darker crevices, their heads poking out to eye you up. Look out for dogfish resting on the sand nearby, and the whole wreck shimmers with pollack and wrasse darting in and out of the structure. It’s a photographer’s dream, especially on a sunny day when the light penetrates right to the bottom, illuminating the kelp-covered steel. We’d suggest taking your time, really nosing into the nooks and crannies – that’s where the best stuff hides.

    Typical ARDANGORM Dive Profile

    5m10mSafety Stop0m10m max~60 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

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

    Today06:3517:3811h 3m daylightGolden hour 16:54

    ARDANGORM Wreck History

    Year Sunk

    1940

    Vessel Type

    cargo ship

    Cause

    grounding

    Tonnage

    1,489 GRT

    The SS Ardangorm was a British steamship built in 1919, a product of the post-WWI era of maritime trade. For two decades, it reliably plied the coastal routes of Europe, transporting essential goods like coal. Its service came to an end during the early months of the Second World War, not from enemy action, but from the timeless peril of the sea: fog.

    On January 4, 1940, the Ardangorm was on a voyage from Swansea to Rouen, France, with a full cargo of coal. As it navigated the Cornish coast, a dense fog descended, completely obscuring visibility. The vessel lost its bearings and ran hard aground on the notorious Gwineas Rocks, a treacherous reef south of Gorran Haven. The impact sealed the ship's fate, but fortunately, the Fowey lifeboat was able to rescue all 21 crew members before the Ardangorm broke apart under the relentless force of the sea.

    Lying in just 10 meters of water, the Ardangorm is now a scattered but fascinating dive site. Decades of storms have flattened the wreck, but its key features, including the large boilers and sections of steel plating, are still easily identifiable. The wreckage is carpeted in marine life, with kelp forests growing over the steel and an abundance of wrasse, pollack, and crabs making their homes in the debris. Its shallow depth makes it an excellent and accessible dive for novices and a perfect second dive of the day for more experienced divers exploring the Cornish coast.

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    Conditions

    Ocean conditions, forecast and tides for ARDANGORM

    ARDANGORM Ocean Conditions

    Monthly averages for ARDANGORM, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    17°C

    62°F · Range: 15.1–17.5°C

    Air Temperature

    13°C

    56°F

    Wind Speed

    8.14 m/s

    15.8 knots

    Atmospheric Pressure

    1011 hPa

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

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