Cornwall & Devon, United Kingdom

    HMS Keith

    Best months: Jul–Sep

    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 Keith 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
    StandoutExceptional marine biodiversity

    The HMS Keith, a B-class destroyer sunk in 1940, sits as a truly impressive wreck off the coast here. We love it because it’s still so intact, surprisingly so for its age and the sometimes-rough conditions it endures. Dropping down, the first thing you notice is the sheer size of the hull, stretching out into the gloom. Visibility here can be a game of chance, but when it’s good, you can make out the lines of the ship clearly, cannons still pointing defiantly. It’s a proper dive, one where you feel the history, the cold war materialising around you. We often find conger eels peering from every dark recess, their heads like old leather, and massive pollack drift in and out of the superstructure. It's a site that suits experienced divers comfortable with deeper wrecks and potential currents; there's plenty to penetrate for those with the right training and gear. Our favourite part? Exploring the bridge area, imagining the crew on watch, then looking for the anemones, bright oranges and pinks, that carpet the exposed metalwork. It’s a stark contrast, the grey steel softened by this explosion of colour. Dive this one on a slack tide for the best experience; it makes all the difference when you’re trying to appreciate the scale.

    Safety Notes

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

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    Conditions

    Ocean conditions, forecast and tides for HMS Keith

    HMS Keith Ocean Conditions

    Monthly averages for HMS Keith, 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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