54m
    Cornwall & Devon, United Kingdom
    Offshore Overfalls

    U 86 (POSSIBLY)

    Best months: Jul–Sep

    Protected Area

    Offshore Overfalls

    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) - U 86 (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 54m
    StandoutExceptional marine biodiversity

    The U 86, off the Cornish coast, is one of those wrecks that really sticks with you. Dropping down to 54 metres, you feel the chill build, but then the form of the submarine starts to resolve from the gloom. It’s a huge, brooding presence on the seabed, testament to its scuttling back in 1921. We love exploring the conning tower area, it's often the most intact part, giving a real sense of scale. Visibility here can be a bit of a lottery; on a good day, it's 10-15 metres, allowing you to appreciate the full length of the U-boat. Look out for the resident conger eels peeking from every opening – some of them are truly enormous. We'd suggest aiming for slack water, it makes the penetration dives, if you're qualified, much more manageable. The bow section is often the first to appear, silhouetted against the lighter water above, a truly atmospheric sight. This is a dive for experienced wreck divers, certainly not one for beginners. The depth and potential for current demand respect.

    Typical U 86 (POSSIBLY) Dive Profile

    15m30m45m60mSafety Stop0m54m 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 54m 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.

    Today06:1817:2111h 2m daylightGolden hour 16:37

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    Conditions

    Ocean conditions, forecast and tides for U 86 (POSSIBLY)

    U 86 (POSSIBLY) Ocean Conditions

    Monthly averages for U 86 (POSSIBLY), 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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