18m
    Bornholm, Denmark
    Stevns Rev

    MARIANNE

    Best months: Jul–Sep

    Protected Area

    Stevns Rev

    Why dive here

    With 66+ marine species recorded in the area - including jellyfish lake - MARIANNE offers some of Bornholm's richest wreck diving. Water ranges 3-18°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 5mm wetsuit
    Marine lifeJellyfish Lake · 66+ species recorded
    Water3-18°C · warmest July, August, September
    CharacterWreck dive · max 18m

    Diving the Marianne is always a fascinating trip back in time, even if the cold water means you’re layered up. This steamship went down in 1946, off Bornholm, and she sits upright at a very manageable 18 metres. We love how intact she is, especially for a wreck of this age. You can clearly make out the bow, the stern, and even the superstructure, making for some truly evocative dives. Inside, where the light struggles to reach, you’ll find plenty of small cod and blennies sheltering in the holds. Visibility, when it's good, lets you appreciate her full length, roughly 72 metres of history. We’d suggest going on a calm day; the Baltic can kick up a fuss and strong currents sometimes sweep across the deck. Our favourite part is navigating the corridors that are still surprisingly open, imagining the crew’s last moments. It’s a site that suits anyone comfortable with cold water and wreck penetration, offering a tangible link to maritime history.

    Typical MARIANNE Dive Profile

    10m20mSafety Stop0m18m 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 14°C). Drysuit or thick wetsuit (7mm+) recommended.

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

    Today06:3217:2310h 51m daylightGolden hour 16:33

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    Conditions

    Ocean conditions, forecast and tides for MARIANNE

    MARIANNE Ocean Conditions

    Monthly averages for MARIANNE, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (54.94, 13.85) (7km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    14°C

    57°F · Range: 11.7–16.3°C

    Air Temperature

    12°C

    53°F

    Wind Speed

    8.16 m/s

    15.9 knots

    Atmospheric Pressure

    1013.3 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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