MARSOUIN
Protected Area
Bristol Channel Approaches / Dynesfeydd Mor Hafren
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) - MARSOUIN offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
Marsouin, sitting in 41 metres off the Cornish coast, is a proper dive, no doubt about it. We love a wreck with a story, and Marsouin delivers; she was a French sailing vessel captured and sunk by a German U-boat in February 1918. Dropping down, you hit the bow first, a sturdy, upright section that gives you a real sense of her scale. The visibility here can be… moody, let’s say, but on a good day, the light filtering through the green water gives the wreck a ghostly presence. She’s well broken amidships, but the stern is largely intact, with a rudder you can still make out. Look out for the resident conger eels, thick as a diver's thigh, peering from every nook. Dogfish often rest in the sand nearby. We’d suggest a slack water dive, as the currents can whip through here, making the penetration bits a bit of a workout. Definitely one for experienced divers comfortable with deeper wrecks and cooler water.
Typical MARSOUIN Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Maximum depth 41m 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.
Nearest Dive Centres to MARSOUIN
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Conditions
Ocean conditions, forecast and tides for MARSOUIN
MARSOUIN Ocean Conditions
Monthly averages for MARSOUIN, 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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