2m
    North Sea Coast, Denmark
    Sydfynske Øhav

    MERCURIUS

    Best months: Jul–Aug

    Protected Area

    Sydfynske Øhav

    Why dive here

    With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - MERCURIUS offers some of North Sea Coast's richest wreck diving. Water ranges 3-19°C, warmest July, August, September.

    Best timeJul–Aug
    WetsuitA 5mm wetsuit
    Marine lifeSeals & Sea Lions, Sea Turtles and Jellyfish Lake · 95+ species recorded
    Water3-19°C · warmest July, August, September
    CharacterWreck dive · max 2m

    The Mercurius isn’t your typical North Sea wreck. We’re talking about a wreck so shallow, she practically breaches the surface at low tide – a mere 2m deep. It’s an unusual dive, more akin to an archaeological snorkel, but we love it for its sheer accessibility and the unique perspective it offers. You’ll find the remains of a motor vessel, scattered across a wide area, testament to the wild North Sea storms she couldn't withstand. We’d suggest going at slack tide for the best visibility, which, let's be honest, is always a factor up here. What you experience at Mercurius is less about vibrant coral and more about the raw power of the ocean claiming its own. You'll see twisted metal plates, parts of the engine block, and various other fragments, all heavily encrusted with mussels and barnacles. The light penetrates easily, illuminating the small crabs scuttling amongst the wreckage and the occasional flounder trying to blend in. It suits divers who appreciate history, photographers looking for an unusual subject, or even snorkelers keen to explore a piece of maritime heritage without needing a full setup. It’s a powerful reminder of the unforgiving nature of these waters.

    Typical MERCURIUS Dive Profile

    Safety Stop0m2m max~60 min estimated bottom time

    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.

    Today06:4017:3210h 52m daylightGolden hour 16:43

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    Conditions

    Ocean conditions, forecast and tides for MERCURIUS

    MERCURIUS Ocean Conditions

    Monthly averages for MERCURIUS, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (55.31, 9.86) (1km away)

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    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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