1m
    Scapa Flow, Orkney, United Kingdom
    Mousa to Boddam

    GK 41/GR 41

    Good diving all year

    Protected Area

    Mousa to Boddam

    Why dive here

    With 140+ marine species recorded in the area - including blue whales, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - GK 41/GR 41 offers some of Scapa Flow, Orkney's richest wreck diving. Water ranges 8-14°C, warmest July, August, September.

    Best timeYear-round
    WetsuitA drysuit
    Marine lifeBlue Whales, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 140+ species recorded
    Water8-14°C · warmest July, August, September
    CharacterWreck dive · max 1m
    StandoutRich in charismatic marine life

    When we think of Scapa Flow, we usually picture those deep, dark battleships. But GK 41/GR 41 offers something completely different, and we absolutely love it for a shore dive. This is the barge that went ashore in Hos Wick Bay, sitting practically on the surface, with the stern just barely submerged at high tide. It’s an easy entry right off the rocks, perfect for a relaxed dive or even a snorkel if you just want to poke around. What you get here is a real sense of a wreck being reclaimed. The plates are peeling, the frames are exposed, and the whole structure is just encrusted with anemones and kelp. We’ve seen blennies darting into every crevice, butterfish weaving through the twisted metal, and even the occasional small crab scuttling across the deck. Sunlight filters through the shallow water, illuminating the colours beautifully, especially on a calm day. It's a peaceful dive, a chance to really slow down and appreciate how quickly the sea takes back what's hers. Grab a torch to peer into the darker corners, though, you never know what’s lurking.

    Typical GK 41/GR 41 Dive Profile

    Safety Stop0m1m max~60 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 13°C). Drysuit or thick wetsuit (7mm+) recommended.

    Today06:3417:1010h 36m daylightGolden hour 16:13

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    Conditions

    Ocean conditions, forecast and tides for GK 41/GR 41

    GK 41/GR 41 Ocean Conditions

    Monthly averages for GK 41/GR 41, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (58.64, -3.16) (8km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    13°C

    55°F · Range: 11.4–13.8°C

    Air Temperature

    10°C

    50°F

    Wind Speed

    9.26 m/s

    18.0 knots

    Atmospheric Pressure

    1005.3 hPa

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

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