27m
    Scottish West Coast, United Kingdom
    Inner Clyde Estuary

    IONA I

    Protected Area

    Inner Clyde Estuary

    Why dive here

    With 112+ marine species recorded in the area - including blue whales, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - IONA I offers some of Scottish West Coast's richest wreck diving.

    Marine lifeBlue Whales, Dolphins, Dwarf Minke Whales, Humpback Whales and Ocean Sunfish (Mola Mola) · 112+ species recorded
    CharacterWreck dive · max 27m
    StandoutRich in charismatic marine life

    The Iona I, a steamship that went down in 1862 after a run-in with the SS Chanticleer, sits upright in about 27 metres of water. We love a wreck with a story, and this one certainly has it. What strikes you first is its sheer size, all 68.6 metres of it, lying surprisingly intact given its age. As you descend, the visibility can be a bit hit or miss, typical for the Scottish West Coast, but on a good day, the silhouette of the wreck emerges dramatically from the green gloom. Our favourite part has to be the paddlewheels – they’re immense, covered in dead man’s fingers and anemones, creating a habitat for all sorts of curious critters. Look closely, and you’ll often spot squat lobsters tucked into crevices and ling peeking out from darker sections. Exploring the deck, you can still trace the outline of where the superstructure would have been, now just a framework colonised by plumose anemones that sway gently in the current. It’s a dive that rewards slow exploration, peering into every nook and cranny. We’d suggest a sturdy torch, not just for illuminating the wreck, but for bringing out the vibrant colours of the invertebrate life. This site is definitely one for experienced wreck divers who appreciate historical context over flash, busy reefs.

    Typical IONA I Dive Profile

    10m20m30mSafety Stop0m27m max~30 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

    Depth of 27m - Advanced Open Water certification recommended.

    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.

    Today06:4217:3110h 49m daylightGolden hour 16:40

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