55m
    Cornwall & Devon, United Kingdom
    Slapton Ley

    ALDERSHOT

    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) - ALDERSHOT 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 55m
    StandoutExceptional marine biodiversity

    The Aldershot. Now there’s a proper wreck dive, one of our favourites off the Lizard. She's a big old steamer, went down in 1918, and lies in a respectable 55 metres. You’ll need your tech certs for this, and frankly, some experience diving in UK waters. We’ve had some truly stunning dives here, the kind where the viz just opens up to 10 metres and the light filters down through the green, highlighting the stern. When you drop down, the sheer size of her hits you. Eighty-five metres long, she’s largely intact and upright, making for fantastic exploration. We love the engine room, a real highlight; the triple-expansion engine is still there, impressive and corroded, a haven for conger eels. We’ve seen some absolute monsters lurking in the shadows there, thick as a diver's thigh. The boilers are massive too, usually covered in plumose anemones, waving gently in the current. She’s definitely a site for those who appreciate maritime history and a challenging, rewarding dive. Just remember, the Lizard can be a bit frisky with currents, so pick your weather window carefully for the best experience.

    Typical ALDERSHOT Dive Profile

    15m30m45m60mSafety Stop0m55m 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 55m 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.

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

    ALDERSHOT Wreck History

    Year Sunk

    1918

    Vessel Type

    cargo ship

    Cause

    torpedo

    Tonnage

    2,059 GRT

    The SS Aldershot is a classic casualty of the First World War, a ghost from an era of unrestricted submarine warfare. Built in 1897, this British steamship spent two decades plying the trade routes before its final, fateful voyage. On September 23, 1918, while transporting a cargo of coal from Barry to Rouen, France, she was spotted by the German submarine UB-112. A single torpedo struck the vessel, and she sank beneath the waves, just weeks before the war's end.

    Resting at a challenging depth of 55 meters, the Aldershot is now a prized site for technical divers exploring the rich maritime heritage of the English Channel. The wreck is significantly broken up but still recognizable, with her two large boilers and triple-expansion engine standing proud amidst the wreckage. Due to the depth, bottom times are short and the dive requires careful planning and execution. For those qualified to make the descent, the Aldershot offers a poignant and atmospheric glimpse into the final, brutal days of WWI.

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    Conditions

    Ocean conditions, forecast and tides for ALDERSHOT

    ALDERSHOT Ocean Conditions

    Monthly averages for ALDERSHOT, 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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