52m
    Cornwall & Devon, United Kingdom
    East of Start Point

    ISBJORN

    Best months: Jul–Sep

    Protected Area

    East of Start Point

    Why dive here

    With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - ISBJORN offers some of Cornwall & Devon's richest wreck diving. Water ranges 10-18°C, warmest July, August, September.

    Best timeJul–Sep
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 176+ species recorded
    Water10-18°C · warmest July, August, September
    CharacterWreck dive · max 52m
    StandoutExceptional marine biodiversity

    The Isbjorn is one of those wrecks that just *feels* right. Lying at 52 metres, it’s a deep dive and often a dark one, so you'll want to be comfortable with your skills and your torchwork. We’ve always found the visibility here to be variable, sometimes a glorious 15 metres, other times a murky five, so be prepared for a proper exploration rather than a scenic fly-by. What we love about the Isbjorn is how intact it still is, considering it’s been down since 1944. The triple-expansion engine is a real highlight, a powerful reminder of its working life, and you can still make out the large cylinders. The bow and stern sections offer some fantastic swim-throughs, now draped in dead man's fingers and home to plump lobsters tucked into every crevice. Our favourite detail is the way conger eels have made the internal structures their own, their heads poking out from unexpected pipes and doorways. It's a deep dive, yes, but for experienced wreck enthusiasts, the Isbjorn rewards every metre of descent with a tangible sense of history and some seriously impressive residents.

    Typical ISBJORN Dive Profile

    15m30m45m60mSafety Stop0m52m max~15 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

    Maximum depth 52m exceeds recreational limits (40m). Technical diving certification and equipment required.

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

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

    Today06:2817:3111h 3m daylightGolden hour 16:47

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    Conditions

    Ocean conditions, forecast and tides for ISBJORN

    ISBJORN Ocean Conditions

    Monthly averages for ISBJORN, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    17°C

    62°F · Range: 15.1–17.5°C

    Air Temperature

    13°C

    56°F

    Wind Speed

    8.14 m/s

    15.8 knots

    Atmospheric Pressure

    1011 hPa

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

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