Scapa Flow, Orkney, United Kingdom
    Loch of Strathbeg

    Wreck of St Magnus (Possibly)

    Good diving all year

    Protected Area

    Loch of Strathbeg

    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) - Wreck of St Magnus (Possibly) 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
    StandoutRich in charismatic marine life

    The Prudentia isn't the biggest wreck in Scapa Flow, but for us, it's one of the most atmospheric. She's broken up pretty well, lying at an angle with her stern at about 20 metres, and the bow section shallower. We love tracing the length of her, imagining her final moments, especially on a day when the light penetrates the gloom. You’ll find an incredible amount of life here, too. The Devonshire cup corals are just stunning, splashes of orange against the steel, and we’ve seen some huge shoals of sprats and sand eels here, silver ribbons moving as one. Look out for razorbacks tucked into the nooks and crannies. The currents can pick up, so we’d suggest timing your dive for slack water, making the penetration into the deeper parts of the hull a bit more comfortable. It’s a dive that rewards slow exploration, taking in both the history and the vibrant life that has reclaimed it.

    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.

    Today06:3217:1610h 44m daylightGolden hour 16:23

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    Conditions

    Ocean conditions, forecast and tides for Wreck of St Magnus (Possibly)

    Wreck of St Magnus (Possibly) Ocean Conditions

    Monthly averages for Wreck of St Magnus (Possibly), sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (58.64, -3.16) (8km away)

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    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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