28m
    Cornwall & Devon, United Kingdom
    St Helen's Duver & Priory Wood

    DIADEM OF BURSLEDON (PROBABLY)

    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) - DIADEM OF BURSLEDON (PROBABLY) 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 28m
    StandoutExceptional marine biodiversity

    This wreck, almost certainly the *Diadem of Bursledon*, is one of our favourite finds off the Cornish coast. Dropping down to 28 metres, you’ll find a sloop that sank in 1970, and she’s truly come alive since then. We love poking around her broken hull, watching how the light catches the metallic gleam of shoals of pollack that dart in and out of the ribs. The structure is wonderfully colonised by jewel anemones and dead man's fingers, creating these vibrant explosions of colour against the rusted metal. It’s a site that really comes into its own on a calm day; even with 10-15m visibility, the atmosphere is incredible as the wreck emerges from the green. For experienced divers who appreciate history and the way nature reclaims man-made objects, this is a special dive.

    Typical DIADEM OF BURSLEDON (PROBABLY) Dive Profile

    10m20m30mSafety Stop0m28m 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 28m - 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 DIADEM OF BURSLEDON (PROBABLY)

    DIADEM OF BURSLEDON (PROBABLY) Ocean Conditions

    Monthly averages for DIADEM OF BURSLEDON (PROBABLY), 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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