M51
Protected Area
Marstal Bugt og den sydlige del af Langeland
Why dive here
With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - M51 offers some of North Sea Coast's richest wreck diving. Water ranges 3-19°C, warmest July, August, September.
The M51, a motor vessel that went down in 1950, rests at a very accessible 18 meters off the North Sea coast. It’s a good spot for divers looking for a straightforward wreck dive. We've found the wreck relatively intact, providing plenty of structure for exploration – you can often trace the outline of the stern and bow, even catch glimpses into some of the cargo holds. The exposed metalwork has become home to a surprising number of crabs and lobsters tucked into crevices, alongside schooling juvenile cod darting between the beams. It's a dive that rewards slow, careful exploration, especially good for those new to wreck diving or looking for a relaxed afternoon beneath the waves.
Typical M51 Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.
Cold water this month (avg 13°C). Drysuit or thick wetsuit (7mm+) recommended.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to M51
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Conditions
Ocean conditions, forecast and tides for M51
M51 Ocean Conditions
Monthly averages for M51, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (55.31, 9.86) (1km away)
October Averages
Sea Temperature
13°C
56°F · Range: 10.7–16.8°C
Air Temperature
11°C
52°F
Wind Speed
7.69 m/s
14.9 knots
Atmospheric Pressure
1010.5 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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