33m
    Cornwall & Devon, United Kingdom
    Slapton Ley

    HMS PICTON CASTLE

    Best months: Jul–Sep

    Protected Area

    Slapton Ley

    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) - HMS PICTON CASTLE 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 33m
    StandoutExceptional marine biodiversity

    The HMS Picton Castle, resting at 33 metres, is a proper chunk of maritime history and one of our favourite deeper wrecks off the Cornish coast. She was a trawler pressed into service by the Royal Navy, and her demise in 1917, likely by a U-boat mine, feels present when you’re down there. The bow is particularly striking, rising from the seabed, and we’ve spent many a dive just tracing the outline of her deck, imagining her working life before the war. The wreck is now heavily colonised, a testament to the North Atlantic’s resilience. We often spot conger eels in the deeper sections, their heads poking out from crevices. Look for lobsters tucked into the plating and the constant movement of bib and pollock around the superstructure. It’s a site that suits experienced divers comfortable with depth and who appreciate exploring a wreck with a real story. The visibility can be fickle, as is common in these waters, but on a good day, the Picton Castle delivers a genuinely atmospheric dive. We’d suggest timing your dive for slack water; the currents here can be robust.

    Typical HMS PICTON CASTLE Dive Profile

    15m30mSafety Stop0m33m max~20 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

    Deep dive (33m) - monitor air consumption closely. Advanced 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.

    Today06:3017:3311h 3m daylightGolden hour 16:49

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    Conditions

    Ocean conditions, forecast and tides for HMS PICTON CASTLE

    HMS PICTON CASTLE Ocean Conditions

    Monthly averages for HMS PICTON CASTLE, 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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