wreck

Log This Dive

HMSM UNITY (PROBABLY)

Dropping onto the HMSM *Unity* always feels like finding a piece of history frozen in time, deep off the Scottish coast. She’s a submarine, lost in a collision back in 1940, and now she rests upright on the seabed at 50 metres. It's a deep dive, no question, but for those with the training, it’s a truly rewarding experience. We love how intact she is; you can clearly make out the conning tower, the torpedo tubes, and the stern. The hull is heavily encrusted, a testament to the decades she’s spent down there, and it's home to some impressive plumose anemones, their white tentacles swaying gently in the current. Look closely and you’ll often spot squat lobsters tucked into crevices. Visibility here can be a bit of a gamble, but on a good day, when the light penetrates just enough, you get a real sense of her scale. Our favourite part has to be tracing the length of her, imagining the crew in those cramped quarters. For experienced wreck divers, this site offers a fantastic opportunity to connect with a tangible piece of wartime history, all while exploring a vibrant artificial reef.