25m
    Cornwall & Devon, United Kingdom
    Studland to Portland

    HMSM XE 8

    Best months: Jul–Sep

    Protected Area

    Studland to Portland

    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) - HMSM XE 8 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 25m
    StandoutExceptional marine biodiversity

    Diving the XE8 is a real step back into naval history, and we love it for that quiet sense of significance. This isn't a huge wreck, but its story and shape are what make it special. She sits upright on a sandy seabed at 25 metres, and you get a real feel for her compact, operational design as you descend. The midget submarine, lost while being moored as a target in 1954, is remarkably intact. You can clearly make out the conning tower, the hydroplanes, and even some of the torpedo tubes. What really catches your eye, though, is how marine life has found a home here. Sponges paint the metal in oranges and purples, and we’ve seen plenty of conger eels poking their heads from inside, especially around the main hull. Look closely and you’ll find squat lobsters tucked into crevices. Visibility here can vary, but on a good day, the light plays beautifully off the structure. It’s a dive that suits those who appreciate maritime heritage and don't need giant pelagics to be impressed. We’d suggest going at slack water; the currents can pick up, making it a less enjoyable rummage. Our favourite spot is hovering just off the stern, imagining the crew that once operated this ingenious, if slightly claustrophobic, vessel. It’s a genuinely unique wreck in UK waters.

    Typical HMSM XE 8 Dive Profile

    10m20mSafety Stop0m25m 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 25m - 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.

    Today06:2617:2811h 2m daylightGolden hour 16:44

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    Conditions

    Ocean conditions, forecast and tides for HMSM XE 8

    HMSM XE 8 Ocean Conditions

    Monthly averages for HMSM XE 8, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)

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    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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