45m
    Cornwall & Devon, United Kingdom
    Kingmere

    PORTHKERRY

    Best months: Jul–Sep

    Protected Area

    Kingmere

    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) - PORTHKERRY 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 45m
    StandoutExceptional marine biodiversity

    Porthkerry is a properly chunky wreck, a great dive if you ask us, lying in a pretty exposed spot off Portland. She was a steamship, built in Sunderland, and went down in 1917 after hitting a mine. You can still see the scale of her, 85 metres long, broken but upright on the seabed at 45 metres. We love dropping onto the stern, where the triple expansion engine and those two big boilers are still very much intact. The prop shaft stretches out, a clear pathway through the gloom. You’ll find squat lobsters tucked into every crevice and conger eels peering from the deeper recesses. The visibility here can be… challenging, so pick your day carefully, ideally with slack tide and calm seas. It’s a dive for those comfortable with deeper wrecks and a bit of current, but she rewards the effort. You get a real sense of history here, the metalwork cloaked in dead man's fingers and anemones. Our favourite part is navigating the broken midships section, feeling the sheer size of the vessel even in its current state.

    Typical PORTHKERRY Dive Profile

    15m30m45mSafety Stop0m45m 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 45m 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.

    Today06:1817:2011h 2m daylightGolden hour 16:35

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    Conditions

    Ocean conditions, forecast and tides for PORTHKERRY

    PORTHKERRY Ocean Conditions

    Monthly averages for PORTHKERRY, 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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