wreck

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HMSM K4

The HMSM K4 is a properly moody dive, exactly what we love about Scottish wreck diving. You’ll find her at 50 metres, a big, imposing K-class submarine that met her end in a collision back in 1918. We’ve spent hours on this one, tracing the length of her hull, imagining the chaos of that night. The sheer scale of K4 is what sticks with you; she’s over 100 metres long, and dropping onto the conning tower feels like landing on a small building. Visibility can be a proper Scottish mixed bag, but when it’s good, the structure just keeps going, disappearing into the gloom. Look out for the resident ling and conger eels that have made the internal spaces their home, their eyes glinting in your torch beam. She’s a wreck for experienced divers, no doubt, given the depth and potential for current, but for those who make the trip, it’s a tangible piece of naval history. Our favourite moments are pushing into the bow section, feeling the sheer volume of the wreck around you, and spotting the odd porthole still intact. It’s a dive that demands respect, and rewards it in spades.