30m
    Cornwall & Devon, United Kingdom
    Trevose Head

    POLDOWN

    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) - POLDOWN 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 30m
    StandoutExceptional marine biodiversity

    The Poldown, sunk in 1917, lies upright and mostly intact on a seabed of 30 metres. This isn't one of those wrecks where you’re just looking at scattered debris; she’s still very much a ship, and that’s what we love about her. The stern is our favourite, with the huge propeller standing proud, a real draw for photo opportunities. You’ll often find conger eels tucked into every dark corner and huge pollack swimming in lazy circles around the mast, which still reaches up towards the surface. Exploring the Poldown feels like stepping back in time, the triple expansion engine is exposed and really quite something to behold. We’d suggest saving your torch batteries for peering into the holds, where the light can be quite dim even on a bright day. The wreck is slowly collapsing, so penetrations aren’t really an option, but there's plenty to see from the outside. Visibility can be hit or miss in Cornwall, but when it’s good, the Poldown offers a fantastic dive for experienced wreck divers who appreciate a bit of maritime history and some surprisingly robust marine life.

    Typical POLDOWN Dive Profile

    10m20m30mSafety Stop0m30m 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 30m - 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.

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

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    Conditions

    Ocean conditions, forecast and tides for POLDOWN

    POLDOWN Ocean Conditions

    Monthly averages for POLDOWN, 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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