14m
    North Sea Coast, Denmark
    Marstal Bugt og den sydlige del af Langeland

    HERRENWYK

    Best months: Jul–Aug

    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 - HERRENWYK 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 14m

    Herrenwyk is a wreck we always enjoy, even if it’s a site that often gets overlooked. Dropping down to 14 metres, you’re greeted by the imposing bulk of a steamship, sunk back in 1942. It was originally the Swedish Martii Ragnar, a grand old girl built in 1912, then seized by the Germans before she hit a mine in Kiel Bay. We love tracing the deck, imagining her former glory. The wreck itself is home to so many critters, even without a species list to pull from. Expect to find conger eels peering from dark corners, and schools of cod often drift lazily above the superstructure. On a good visibility day, which can be hit or miss in the North Sea, the sheer scale of the 110-metre length is impressive, making for a proper exploration. Our favourite part is navigating the cargo holds, where sunlight, when it breaks through, creates an ethereal glow. It’s a dive for those who appreciate history and the way the sea reclaims its own, offering a rewarding experience for divers comfortable with wreck penetration.

    Typical HERRENWYK Dive Profile

    5m10m15mSafety Stop0m14m max~50 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.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today06:3917:3210h 53m daylightGolden hour 16:43

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    Conditions

    Ocean conditions, forecast and tides for HERRENWYK

    HERRENWYK Ocean Conditions

    Monthly averages for HERRENWYK, 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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