7m
    Cornwall & Devon, United Kingdom
    Swanpool

    HMML 380

    Best months: Jul–Sep

    Protected Area

    Swanpool

    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) - HMML 380 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 7m
    StandoutExceptional marine biodiversity

    We’re going to be straight with you: the HMML 380 isn't a deep dive, sitting at a maximum of 7m. What it lacks in depth, though, it more than makes up for in atmosphere and sheer historical presence. Sunk in 1919, this wreck is a tangle of metal, now softened by time and a thick coat of marine growth. Drop down and you're immediately in its world. The structure is broken, but you can still pick out the ribs and plates of the old vessel. Our favourite bits are where the light filters through gaps in the wreckage, illuminating clouds of juvenile pollock that dart in and out. Keep an eye out for dogfish tucked under larger plates, and the vibrant colours of jewel anemones clinging to every surface. It’s an ideal spot for macro photography, or for newer wreck divers wanting to experience a piece of history without the challenge of depth or strong currents. Just remember your drysuit; it’s the UK, after all.

    Typical HMML 380 Dive Profile

    5mSafety Stop0m7m max~60 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

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

    Today06:3617:3911h 3m daylightGolden hour 16:55

    Nearest Dive Centres to HMML 380

    Dive shops near HMML 380

    View all dive centres in Cornwall & Devon

    Reviews for HMML 380

    Sign in to write a review

    Conditions

    Ocean conditions, forecast and tides for HMML 380

    HMML 380 Ocean Conditions

    Monthly averages for HMML 380, 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

    Plan & book

    Ways to dive Cornwall & Devon, from day trips to liveaboards.

    Day trips & courses

    via GetYourGuide

    Guided dives, courses and snorkel trips with instant booking.

    Find dive trips in Cornwall & Devon

    Places to stay

    via Booking.com

    Hotels and dive resorts near Cornwall & Devon.

    Search stays in Cornwall & Devon

    Dive insurance

    Most travel insurance excludes or limits scuba. Check what you need before you go.

    Dive insurance explained

    Partner links: we may earn a commission if you book, at no extra cost to you. How we make money

    Where to Stay near HMML 380

    Prices from Booking.com. We may earn a commission at no extra cost to you.

    Back to Cornwall & Devon