M2 (Wreck)
Protected Area
Chesil Beach and Stennis Ledges
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) - M2 (Wreck) offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.
There's a reason the M2 remains one of our absolute favourite dives in UK waters. This is no ordinary wreck, it’s a submarine, and exploring it feels like stepping back into a submerged museum, a chilling reminder of its tragic loss in 1932. Dropping down, the sheer scale of it becomes apparent quickly. We always make a beeline for the hangar forward of the conning tower, imagining the small seaplane it once launched. You can spend a good chunk of bottom time just circumnavigating the exterior, observing the way dabs and plaice hug the sand around the hull, and conger eels peer out from behind plating. Look closer, and the wreck is completely encrusted with jewel anemones and dead man’s fingers, providing a riot of colour even on a grey day. It’s a dive for those who appreciate history and enjoy the solemn beauty of a well-preserved wreck. Just keep an eye on your depth, 30m creeps up fast.
Typical M2 (Wreck) 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 30m - 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.
Nearest Dive Centres to M2 (Wreck)
Dive shops near M2 (Wreck)
Old Harbour Dive Centre
Dive Beyond Limited
Dive academy
Divers Down
Dorset Diving Services
Mayim Mermaid Academy
Reviews for M2 (Wreck)
Conditions
Ocean conditions, forecast and tides for M2 (Wreck)
M2 (Wreck) Ocean Conditions
Monthly averages for M2 (Wreck), 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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