16m
    Scapa Flow, Orkney, United Kingdom
    Moray Firth

    HMS MARSONA (N SECTION)

    Good diving all year

    Protected Area

    Moray Firth

    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) - HMS MARSONA (N SECTION) 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 16m
    StandoutRich in charismatic marine life

    The Marsona, or what’s left of her northern section, is one of those Scapa wrecks we keep coming back to. She was a trawler, pressed into minesweeping duty, and went down in '40. Lying at a gentle 16 metres, it's a relaxed dive, perfect for a long bottom time just soaking in the history. We love how her hull plates are peeling back, creating these nooks and crannies where squat lobsters always seem to be peeking out. You’ll spend your dive tracing the remains of the bow, the anchor chain still prominent, and seeing how the metal has softened with time, draped in dead man's fingers. Our favourite part is dropping down into the fish hold – it’s a bit silty, but the light plays in there beautifully, and you often find small schools of juvenile coalfish darting about. It’s not the biggest wreck in Scapa, but its accessibility and the way marine life has utterly reclaimed it makes it a standout. A gentle current often sweeps through, keeping visibility decent, and it’s a great site for photographers keen on capturing the intricate growth on the steel.

    Typical HMS MARSONA (N SECTION) Dive Profile

    10mSafety Stop0m16m 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 13°C). Drysuit or thick wetsuit (7mm+) recommended.

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

    Today06:4117:2510h 44m daylightGolden hour 16:31

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    Conditions

    Ocean conditions, forecast and tides for HMS MARSONA (N SECTION)

    HMS MARSONA (N SECTION) Ocean Conditions

    Monthly averages for HMS MARSONA (N SECTION), 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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