HMS Seahorse
Why dive here
With 118+ marine species recorded in the area - including dolphins, dwarf minke whales, humpback whales, ocean sunfish (mola mola) and orcas - HMS Seahorse offers some of Northumberland & Northeast's richest wreck diving.
The HMS Seahorse, a 1932 S-class submarine, isn’t your typical easy wreck dive. We find her about five miles out from Blyth, and she really shows her age. The wreck is pretty broken up, mostly just plates and ribs, scattered across the seabed like a forgotten jigsaw. You won’t be penetrating here, not safely anyway. Instead, we love picking through the debris field, imagining her final moments. What really makes Seahorse special for us is the sheer volume of life that has claimed her. You'll find lobster tucked into every crevice, fat velvet crabs scuttling over the metal, and often huge shoals of coalfish circling the larger sections. We've seen enormous ling lurking in the shadows and nudibranchs grazing on the rust. Visibility can be a real gamble in the North Sea, but on a good day, when the sun filters down, the greens and browns of the wreck take on a muted beauty. We always keep an eye on the tides for this one; slack water is key if you don't fancy a workout. It’s a dive for those who appreciate history and don't mind a bit of a hunt among the rubble.
Typical HMS Seahorse Dive Profile
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.
Always perform a 3-minute safety stop at 5m before surfacing.
Reviews for HMS Seahorse
Conditions
Ocean conditions, forecast and tides for HMS Seahorse
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