56m
    Cornwall & Devon, United Kingdom
    South-West Approaches to Bristol Channel

    MADRYN

    Best months: Jul–Sep

    Protected Area

    South-West Approaches to Bristol Channel

    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) - MADRYN 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 56m
    StandoutExceptional marine biodiversity

    We love a good deep wreck, and the Madryn delivers. Lying at 56 metres, this 89-metre steamship is a serious dive, but for those with the training, it’s a real reward. Dropping down, the hull gradually resolves from the blue, a huge shadow on the seabed. She went down in 1918, but a century later, she's still remarkably intact, certainly considering the depth and the often-lively conditions out here. Our favourite part is exploring the stern, where the triple-expansion engine and boilers are still very much in evidence. The prop shaft extends proudly, leading to a huge propeller that's a magnet for conger eels, some of them proper monsters. On the deck, you’ll find winches and sections of railing, draped in dead man's fingers and jewelled anemones. Visibility can be hit or miss, but on a good day, with a bit of sunlight filtering down, the scale of the Madryn is genuinely impressive. It’s a dive that demands respect, but for experienced technical divers, it’s one of Cornwall’s best deep secrets.

    Typical MADRYN Dive Profile

    15m30m45m60mSafety Stop0m56m 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 56m 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 16:54

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    Conditions

    Ocean conditions, forecast and tides for MADRYN

    MADRYN Ocean Conditions

    Monthly averages for MADRYN, 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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