27m
    Cornwall & Devon, United Kingdom
    Bonchurch Landslips

    ASBORG

    Best months: Jul–Sep

    Protected Area

    Bonchurch Landslips

    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) - ASBORG 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 27m
    StandoutExceptional marine biodiversity

    The ASBORG is one of our favourite Cornwall wrecks, especially for those who appreciate a proper historical site. She went down in 1918 after hitting a mine, and over a century later, she’s still remarkably intact for a WWI casualty. Sitting upright at 27m, the sheer scale of the ASBORG is what gets you. We love dropping down onto the deck, which is now a bustling reef. You’ll find walls of plumose anemones clinging to the plates, their feathery tentacles swaying in the gentle surge. We’d suggest heading for the stern first. The triple expansion engine is a massive, complicated beast, and we often spot conger eels poking their heads out from behind the machinery. Further forward, the single boiler is a huge focal point, a real classic wreck feature that’s completely encrusted with invertebrate life. While visibility can be a bit hit or miss in the Channel, when it’s good, the ASBORG offers fantastic penetration opportunities for trained wreck divers into the cargo holds. It’s a site for experienced divers who appreciate history and don’t mind a bit of a current.

    Typical ASBORG Dive Profile

    10m20m30mSafety Stop0m27m 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 27m - 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.

    Today06:2117:2411h 2m daylightGolden hour 16:39

    ASBORG Wreck History

    Year Sunk

    1918

    Vessel Type

    cargo ship

    Cause

    torpedo

    Tonnage

    2,969 GRT

    The SS Asborg was a Norwegian steam-powered cargo ship built in 1896. For over two decades, she plied the trade routes, a workhorse of the seas. Her career came to a sudden end during the height of World War I, a time when German U-boats prowled the English Channel, creating a perilous gauntlet for Allied and neutral shipping. On January 3, 1918, while on passage, the Asborg was spotted by the German submarine UB-30. A single torpedo struck the vessel, sealing her fate. She sank beneath the waves, becoming another silent casualty of the war at sea.

    Today, the Asborg rests at a depth of 27 meters off the coast of Cornwall. The wreck is a fantastic dive, often frequented by local charters. While time and the sea have taken their toll, she remains a recognizable ship. Divers can explore her hull, which is largely intact, and identify key features like her large single boiler and the triple-expansion steam engine. The wreck has become a thriving artificial reef, with its metal structure providing a home for an abundance of marine life, including schools of bib, pollack, and colorful wrasse. Exploring the Asborg is a journey back in time, offering a tangible connection to the maritime history of WWI.

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    Conditions

    Ocean conditions, forecast and tides for ASBORG

    ASBORG Ocean Conditions

    Monthly averages for ASBORG, 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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