13m
    Bornholm, Denmark
    Stevns Klint

    SEKUNDUS

    Best months: Jul–Sep

    Protected Area

    Stevns Klint

    Why dive here

    With 66+ marine species recorded in the area - including jellyfish lake - SEKUNDUS 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 13m

    The Sekundus is one of those wrecks that really sticks with you, a poignant reminder of Bornholm’s maritime past. She’s shallow, only 13 metres, making her perfect for an extended rummage without racking up deco. We love how upright she is, sitting proud on the seabed, practically inviting you inside. You can peer into the holds, imagine the cargo she once carried, and let your imagination fill in the blanks. What makes the Sekundus truly special for us is the way marine life has completely taken over. We've seen some impressive cod lurking in the shadows, along with feisty crabs scuttling across her decking. The visibility here can be temperamental, sometimes a glorious 15 metres, other times a murky 5. Our advice? Pick a calm day, preferably after a few days of settled weather, for the best chance to really soak her in. It’s not just a wreck dive; it's a dive into a living piece of history, colonised by the sea itself. She suits divers who appreciate a good story and don't mind a bit of a treasure hunt for the details.

    Typical SEKUNDUS Dive Profile

    5m10m15mSafety Stop0m13m 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.

    Today06:3117:2210h 51m daylightGolden hour 16:32

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    Conditions

    Ocean conditions, forecast and tides for SEKUNDUS

    SEKUNDUS Ocean Conditions

    Monthly averages for SEKUNDUS, 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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