20m
    North Sea Coast, Denmark
    Broen

    POLARNA

    Best months: Jul–Aug

    Protected Area

    Broen

    Why dive here

    With 95+ marine species recorded in the area - including seals & sea lions, sea turtles and jellyfish lake - POLARNA 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 20m

    The Polarna sits on the seabed off the North Sea Coast, a surprisingly accessible wreck for those keen on Danish history. We’ve always appreciated a wreck with a story, and this one, a former motor vessel now classified as a dangerous wreck, certainly has it. Dropping down to 20 metres, the first thing you notice is the way the light filters through the green North Sea water, giving the whole site a slightly eerie, reverent feel. The wreck itself is broken but still offers plenty of structure to explore. We love finning along the bow, imagining its working life, now home to clouds of small fish darting in and out of the plating. It’s a great site for seeing how quickly marine life reclaims man-made objects; the metalwork is heavily encrusted, attracting various crabs and gobies. Visibility can be a bit of a lottery here, so we always suggest picking a day with settled weather. It’s a site for divers who appreciate the quiet history of the sea, who don't mind a bit of current, and who get a kick out of discovering a piece of the past.

    Typical POLARNA Dive Profile

    10m20mSafety Stop0m20m max~30 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

    Depth of 20m - Advanced Open Water certification recommended.

    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.

    Today06:3817:2910h 52m daylightGolden hour 16:40

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    Conditions

    Ocean conditions, forecast and tides for POLARNA

    POLARNA Ocean Conditions

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

    ExcellentGreatGoodFairPoor★Best monthsThis month

    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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