52m
    Cornwall & Devon, United Kingdom
    Pentire Peninsula

    DEPUTIE GASTON DUMESNIL (POSSIBLY)

    Best months: Jul–Sep

    Protected Area

    Pentire Peninsula

    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) - DEPUTIE GASTON DUMESNIL (POSSIBLY) 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 52m
    StandoutExceptional marine biodiversity

    We love a good mystery, and the *Deputie Gaston Dumesnil* (possibly) offers exactly that. Dropping to a shade over 50 metres, this isn't a dive for the casual weekend warrior. You'll need your experience here, especially with the often-surprising currents off the Cornish coast. What makes this wreck a standout is its intact nature. She sank in 1921, and while the sea has definitely left its mark, you can still trace her lines. Our favourite part is often the stern, where the triple-expansion engine still stands proud. It’s a proper industrial sculpture down there. Look closely for the squat lobsters tucked into every crevice, and the vibrant jewel anemones that cling to the metalwork, a riot of orange and pink against the rust. Visibility can vary wildly here, but on a good day, with a bit of sunlight filtering down, it's genuinely atmospheric. We'd suggest timing your dive for slack water; trying to fin against a strong tide at this depth is no fun at all. This wreck is perfect for technical divers who appreciate a piece of history and the challenge of a deeper, darker dive.

    Typical DEPUTIE GASTON DUMESNIL (POSSIBLY) Dive Profile

    15m30m45m60mSafety Stop0m52m max~15 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

    Maximum depth 52m exceeds recreational limits (40m). Technical diving certification and equipment required.

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

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

    Today06:3617:3811h 2m daylightGolden hour 16:54

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    Conditions

    Ocean conditions, forecast and tides for DEPUTIE GASTON DUMESNIL (POSSIBLY)

    DEPUTIE GASTON DUMESNIL (POSSIBLY) Ocean Conditions

    Monthly averages for DEPUTIE GASTON DUMESNIL (POSSIBLY), 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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