ASBORG
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.
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
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.
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.
Nearest Dive Centres to ASBORG
Dive shops near ASBORG
In2 Diving
Andark Diving
Sussex Diving & Leisure
Mulberry Marine Experiences CIC
TAL Scuba Ltd.
Divers Down
Reviews for ASBORG
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)
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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