1m
    Cornwall & Devon, United Kingdom
    Penarth Coast

    COMMANDANT MARCHAND

    Best months: Jul–Sep

    Protected Area

    Penarth 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) - COMMANDANT MARCHAND 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 1m
    StandoutExceptional marine biodiversity

    The *Commandant Marchand*, a French steam trawler, met its end in 1930, running aground on the Manacles Reef. Now, it’s less a wreck and more a scatter of metal, lying in just a meter or two of water. We wouldn't send you here with a full twin-set, but for a snorkel or a shallow shore dive on a calm day, it's a fascinating look at history and how the sea reclaims its own. What you'll find here is a jumble of hull plates, engine parts, and twisted girders. We love how the kelp forests have grown over everything, creating little hiding spots for wrasse and crab. Look closely, and you'll spot snakelocks anemones swaying gently, their green tentacles catching the sun. It’s a site for the curious, for those who appreciate the subtle beauty of a reef evolving from a disaster. Go at high tide for the best visibility; the sand can kick up quickly if there’s any surge. It's a proper British wreck experience, just without the decompression.

    Typical COMMANDANT MARCHAND Dive Profile

    Safety Stop0m1m 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.

    Today06:3017:3011h 0m daylightGolden hour 16:45

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    Conditions

    Ocean conditions, forecast and tides for COMMANDANT MARCHAND

    COMMANDANT MARCHAND Ocean Conditions

    Monthly averages for COMMANDANT MARCHAND, 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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