Cornwall & Devon, United Kingdom
    Bassurelle sandbank

    HMS Bulwark

    Best months: Jul–Sep

    Protected Area

    Bassurelle sandbank

    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 Bulwark 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

    Now, the HMS Bulwark. This isn't your pretty reef dive, it’s a proper piece of history, sunk by internal explosion during WWI. We love it because it’s a big, broken monster of a wreck, scattered across the seabed near Sheerness. You drop down, and the scale of the destruction hits you immediately. We’re talking about massive plates of steel, twisted like paper, and huge sections of the hull lying on their side. Visibility can be a bit 'Cornwall', so we always aim for slack water on a decent tide to get the best out of it. There are often big conger eels tucked into the darker corners, and crabs scuttling over the debris. It’s a dive for those who appreciate the sheer power of a wreck, the engineering, and the quiet, almost eerie atmosphere of a battleship that met such a violent end. Our favourite part? Finding one of the enormous steam engines, still largely intact, a testament to the sheer scale of these old warships. Bring a good torch; there are plenty of nooks and crannies to peer into.

    Safety Notes

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

    Today06:1317:1611h 3m daylightGolden hour 16:32

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    Conditions

    Ocean conditions, forecast and tides for HMS Bulwark

    HMS Bulwark Ocean Conditions

    Monthly averages for HMS Bulwark, 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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