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I Found 3 Unsolved Mysteries on This Shipwreck

Apr 5, 2026
What started as a routine identification dive turned into something far more frustrating… and far more interesting. On a deep wreck off the southwest coast of Cornwall, believed to be the London Trader, everything quickly stopped adding up. The cargo was wrong. The dimensions didn’t match. The engine configuration told a completely different story. And the deeper we looked, the clearer it became… this wasn’t the wreck we thought it was. Instead, we uncovered three unsolved mysteries: • If this isn’t the London Trader, what is it? • Where is the real wreck of the London Trader? • And what happened to the SS Seirstad, whose bell was recovered but whose location has been lost to time? This dive takes you down to 70 metres on a heavily broken steamship, where clues like cargo, boilers, engine layout and wreck dimensions all point in different directions. Along the way, you’ll see how real wreck identification works underwater and why so many wrecks around the UK remain unidentified. It also highlights a bigger issue in wreck diving: lost knowledge. Information recovered decades ago has disappeared, leaving us to start again from scratch. If you’re into deep wreck diving, maritime history, or underwater exploration, this is exactly the kind of mystery that keeps us going back. ━━━━━━━━━━━━━━━━━━━━━━ *CHAPTERS* 00:00 The Mystery Begins

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