5m
    Cornwall & Devon, United Kingdom
    Jersey Coast

    HMS DETERMINEE (EX LA DETERMINEE)

    Best months: Jul–Sep

    Protected Area

    Jersey Coast

    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) - HMS DETERMINEE (EX LA DETERMINEE) 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 5m
    StandoutExceptional marine biodiversity

    The HMS Determinee, once the French La Determinee, offers a genuinely unique piece of history just below the surface. We love this site for its accessibility and the sheer weight of its story. It’s a shallow dive, barely 5 metres, making it perfect for newer divers or those who just want a relaxed potter, but don't let the depth fool you into thinking it's boring. What remains of the 24-gun frigate, wrecked in 1803, is spread across a rocky seabed off Noirmont Point. You’ll find timbers, cannon, and scattered artefacts, often half-buried in the sand. We’ve spent hours here, meticulously sifting through the shingle, imagining the chaos of its final moments. The wreck is a haven for the usual Cornish suspects – wrasse darting between the frames, spider crabs scuttling over corroded metal, and sometimes a curious dogfish peeking from under a deeper crevice. It’s not a vibrant coral garden, but the green and brown hues of the kelp swaying over history have their own stark beauty. Our favourite time to visit is on a calm, sunny day when the light penetrates right to the bottom, illuminating the ghostly remains. Just remember to check the tides; strong currents can make the dive less enjoyable, and we prefer a slack water entry for the best experience.

    Typical HMS DETERMINEE (EX LA DETERMINEE) Dive Profile

    5mSafety Stop0m5m 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.

    Today06:2317:2911h 5m daylightGolden hour 16:46

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    Conditions

    Ocean conditions, forecast and tides for HMS DETERMINEE (EX LA DETERMINEE)

    HMS DETERMINEE (EX LA DETERMINEE) Ocean Conditions

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

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    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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