54m
    Cornwall & Devon, United Kingdom
    Dolphin Head Highly Protected Marine Area

    OIEKAST

    Best months: Jul–Sep

    Protected Area

    Dolphin Head Highly Protected Marine Area

    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) - OIEKAST 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 Oiekast is one of those deeper wrecks that really rewards the effort. Dropping down, the silence starts to feel heavier at 40 metres, and then the dark shape of the steamship emerges from the gloom. She’s remarkably intact for a vessel torpedoed in 1917, sitting upright at 54 metres. We love finning along her deck, imagining the chaos of that December day. The bow section is particularly good, often draped in dead man’s fingers, and we've spotted conger eels tucked into every dark crevice. Our favourite detail is the stern, where you can still make out the propeller shaft, now home to clouds of jewel anemones. It’s a dive for experienced wreck enthusiasts comfortable with depth and colder water; the visibility can be variable, but on a good day, the Oiekast offers a real journey back in time, with the added bonus of some impressive Cornish marine life making themselves at home. Keep an eye on the tides for the slack window, that's key here.

    Typical OIEKAST 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.

    Today06:1917:2311h 4m daylightGolden hour 16:39

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    Conditions

    Ocean conditions, forecast and tides for OIEKAST

    OIEKAST Ocean Conditions

    Monthly averages for OIEKAST, 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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