48m
    Cornwall & Devon, United Kingdom
    Trevose Head

    U 1021 (POSSIBLY)

    Best months: Jul–Sep

    Protected Area

    Trevose Head

    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 1021 (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 48m
    StandoutExceptional marine biodiversity

    We love a good mystery, and the U-1021 delivers. This isn’t a shallow, sun-dappled wreck; it’s a deep, dark dive at 48 metres, strictly for those comfortable with technical profiles and often chilly UK waters. Dropping down, you’ll feel the chill really bite, but the reward is worth it: a remarkably intact Type VIIC U-boat. Our favourite approach is to start midships, letting your eyes adjust to the gloom, then slowly moving forward. The conning tower is still prominent, a really eerie silhouette against the low visibility. You can make out the torpedo tubes if you’ve got a good torch and a keen eye. What really gets us about the U-1021 isn't just the history, though it's certainly there, a stark reminder of wartime, but how the sea has reclaimed it. Anemones speckle the hull like confetti, and we’ve often found conger eels peering out from open hatches, their heads like grizzled old men. Ling often patrol the deeper parts of the deck. This is a dive about quiet contemplation, about the sheer scale of the wreck emerging from the deep, and the resilient life that’s made a home on it. Don't rush it; take your time to really absorb the atmosphere.

    Typical U 1021 (POSSIBLY) Dive Profile

    15m30m45mSafety Stop0m48m 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 48m 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.

    Today06:3717:3911h 2m daylightGolden hour 16:55

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    Conditions

    Ocean conditions, forecast and tides for U 1021 (POSSIBLY)

    U 1021 (POSSIBLY) Ocean Conditions

    Monthly averages for U 1021 (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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