Video thumbnail for SIX Years to Identify A 70 Metre Deep WW2 Submarine - Here's What They Found

SIX Years to Identify A 70 Metre Deep WW2 Submarine - Here's What They Found

May 17, 2026
Seventy metres down. Pitch black. You're looking at a submarine with no markings, no identification… and no explanation for why it's here. What happened next became the bestselling book Shadow Divers — and it started with a series of dives that Richie Kohler himself calls… completely bonkers. In 1991, a fishing captain named Bill Nagle handed a set of coordinates to a small group of deep wreck divers off the coast of New Jersey. He told them there was something on the bottom. Something big. When they got down there, they found a submarine. A German U-boat. But here's the problem — there shouldn't be one there. Allied records said no U-boat was ever sunk in that location. The history books were wrong. So now you've got an unidentified submarine, sitting in seventy metres of water, and no paper trail to tell you what it is. To identify this boat, they had to go inside it. Seventy metres. On air. Narcosis so thick you can barely read your own gauges. Hours of decompression. Corridors designed for men half your size — before you strap on doubles and a stage bottle. And this is the early nineties. There is no technical diving industry. No courses. No standards.It took six years. It cost lives. And when they finally recovered a tagged piece of equipment from deep inside the wreck, they had their answer — U-869. A boat that the German Navy's own records said was sunk off Gibraltar. She wasn't. She was here. Richie Kohler was one of those divers. And I sat down with him to hear the full story — how they found her, how they identified her, and what it was really like to dive a wreck that rewrote history. ━━━━━━━━━━━━━━━━━━━━━━ *SHADOW DIVERS* I think every technical diver should read this book! Shadow Divers: The True Adventure of Two Americans Who RIsked Everything to Solve One of the Last Mysteries of World War II - Shadow DIvers - https://amzn.to/4dn2p2w ━━━━━━━━━━━━━━━━━━━━━━ *CHAPTERS* 00:00:00 – The Mystery Submarine at 70m 00:06:20 – Deep Air and Early Tech Diving Limits

View Video Transcript
#Sports