M 483
Protected Area
Gouliot Caves and Headland, Sark
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) - M 483 offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
Dropping onto the M 483, you’re met with a German minesweeper that’s been down since 1943. She’s well-broken now, but you can still pick out the twin boilers and parts of her triple expansion engines. The stern is often a highlight, with the twin rudders and propeller shafts clear to see. Plenty of lobsters and conger eels have made homes in the deeper sections, and we’ve often spotted dogfish resting on the seabed nearby. It’s a good deep dive, best for those comfortable at 40m+, and the currents can pick up, so choose your slack wisely.
Typical M 483 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 45m 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 M 483
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Conditions
Ocean conditions, forecast and tides for M 483
M 483 Ocean Conditions
Monthly averages for M 483, 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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