Bornholm, Denmark

    Wreck of Mars

    Best months: Jul–Sep

    Why dive here

    With 66+ marine species recorded in the area - including jellyfish lake - Wreck of Mars 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

    Forget your usual warm-water wreck dives; the Mars is a different beast entirely. Lying off Bornholm, this isn't just a sunken ship, it's a cold-water time capsule. We're talking about a 16th-century Swedish warship, mind you, and the sheer scale of it hits you first. As you descend, the sheer timbers emerge from the gloom, still holding the ghost of battles long past. Our favourite part has to be finning past those ancient cannons, often draped in kelp, with the occasional cod peering out from a dark corner. The visibility here can be tricky, so pick your day carefully, ideally with minimal swell. When it's good, though, exploring the intact sections of the hull, still bristling with artefacts, is an incredible experience. You'll often find ling and conger eels making homes in the deeper parts of the structure, and the occasional curious seal might even join your dive. It’s a dive for those who appreciate history and don't mind a bit of a chill; a drysuit is definitely recommended. It’s a privilege to see a wreck this old, this well-preserved, and still relatively untouched.

    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.

    Today06:1517:0110h 46m daylightGolden hour 16:08

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    Conditions

    Ocean conditions, forecast and tides for Wreck of Mars

    Wreck of Mars Ocean Conditions

    Monthly averages for Wreck of Mars, 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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