30m
    Cornwall & Devon, United Kingdom
    St Helen's Duver & Priory Wood

    HMS HAZARD

    Best months: Jul–Sep

    Protected Area

    St Helen's Duver & Priory Wood

    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 HAZARD 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 30m
    StandoutExceptional marine biodiversity

    The HMS Hazard, a former torpedo gunboat, holds a special place in our hearts when diving the UK's south coast. She sits upright at 30 metres, a substantial wreck at 76 metres long, and we love how intact she feels for a vessel that’s been down since 1918. Descending onto her deck, you can still make out the outline of her four boilers, now heavily encrusted, and the twin triple-expansion engines are a fascinating sight. It’s a proper dive into history, feeling the cold Atlantic water around you as you explore the remains of her superstructure. We’d suggest planning your dive to coincide with slack water, as currents here can really rip. You'll find plenty of life too, with dogfish often tucked into crevices, conger eels peeking out from pipes, and jewel anemones adding bursts of colour to the dark metal. The Hazard is a fantastic spot for experienced wreck divers looking for a substantial, explorable piece of naval history, without the crowds of some more accessible sites. Just remember your decent torch – it gets dark down there.

    Typical HMS HAZARD Dive Profile

    10m20m30mSafety Stop0m30m max~30 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

    Depth of 30m - Advanced Open Water certification recommended.

    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.

    Today06:2117:2311h 2m daylightGolden hour 16:38

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    Conditions

    Ocean conditions, forecast and tides for HMS HAZARD

    HMS HAZARD Ocean Conditions

    Monthly averages for HMS HAZARD, 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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