00:01January 14, 2017. It's dead cold in Finland. The lakes are frozen solid, and under one of them,
00:10way out in Lohja, a group of divers is dropping through a hole in the ice, into black water.
00:17They're diving Ojamo Mine, and yeah, it sounds cool. It is cool. But it's also the kind of place
00:24where people die. This wasn't always a dive site. From 1925 to 1965, Ojamo was a working lime mine,
00:34noisy, grimy, dangerous in that old industrial way. When it shut down, the quarry flooded,
00:42leaving behind miles of submerged tunnels, like an underground maze, but without the cheese at the
00:48end. The tunnels stretch several miles in all directions, tight, dark, and cold. We're talking
00:5639 degrees Fahrenheit year-round. In the summer, algae clouds the water. In the winter, the visibility's
01:04better, but you've got a solid sheet of ice above your head. And there's only one way back out,
01:09that same hole you came in through. Miss it, and you're not surfacing.
01:14So back to this dive. Middle-aged guy, experienced enough to be there, joins a winter group dive.
01:22Everything's routine, until it's not. About 30 minutes in, he signals something's wrong. I don't
01:30know what. Gear issue? Cold shock? Panic? He didn't make it back to the surface. Rescue teams got to him
01:39fast, like 15 minutes fast. But by then, he was already gone. Resuscitation failed. The dive became
01:48a recovery. And the thing is, this wasn't new. Ojamo's got a brutal reputation. Fire chief Yuka
01:56Eklund, who led that recovery, set it straight. Dozens of accidents have happened here.
02:02And that's not counting the near-misses people don't talk about. What makes it so deadly? It's not
02:08just the cold or the depth, though yeah, some sections drop over 820 feet. It's the disorientation.
02:16The silence. The false sense of calm. You lose your buddy. Your light dims. Silt gets kicked up.
02:25And suddenly, every tunnel looks the same. You're just turning in circles, trying to remember where
02:31the exit is, and hoping you're not too late. And here's what blows my mind. People still keep
02:38coming back. Every year. Yes, you heard that right. Some of them with GoPros, like it's a vacation spot.
02:45You get one chance to get it right. And if you screw it up, bro, you're not swimming out of
02:51this one.
02:53February 6th, 2014. Five Finnish divers, Kai, Patrick, Vesa, Yari Huataranen, and Yari Usimaki,
03:03stood on the frozen surface of Plura Lake, Norway. The cave is called Plura Grota, and it's no joke.
03:11They've done it before. A few months earlier, they made the full traverse, in one side, out the other.
03:17This time, they were starting from the opposite end. Everything was dialed in. High-end gear,
03:25backup systems, trimix breathing gas, scooters, full CCR setups. These weren't weekend warriors.
03:34These were elite, technical divers. And yet, it was risky. But they weren't being reckless.
03:41Two divers, Patrick and Huataranen, went first. Cut a hole in the ice. Dropped in. Clear water.
03:50Good visibility. Everything looked perfect. They descended through tight, flooded tunnels,
03:56cruising on their scooters, dropping deeper and deeper until they hit the low point,
04:01about 443 feet down. Pretty wild. They powered down the scooters, took a moment to appreciate the
04:08chamber. Even switched to bail-out rebreathers to practice. Everything was still going to plan.
04:14But then came the turn. As they started to ascend, they hit a tight restriction. Patrick swam through,
04:21but when he turned around, he couldn't see Huataranen's light. He waited. Still nothing.
04:27Then suddenly. Light flashes. Up and down. Total distress. Huataranen was stuck. Panicking.
04:35And burning through oxygen. Patrick swam back. Ditched a cylinder. Moved his scooter. Cleared a
04:42snag on Huataranen's gear. But his friend was still freaking out. And bro, panic at that depth?
04:49You're not thinking. You're just surviving. Huataranen was panicking hard. Ripping his reg
04:56in and out like he couldn't decide whether to breathe or drown. Then suddenly. Nothing.
05:02Nothing. No mouthpiece. Just raw panic and open water. Patrick tried everything. Pressed a rag into
05:11his mouth. Purged it. But Huataranen inhaled water. That was it. Game over. And now Patrick stuck too.
05:19His bail-out gear? Still with Huataranen's body. His dive computer tells him he needs over six hours
05:25of decompression to get out alive. No way to turn back. No way to warn the others. Just him.
05:32And 400 minutes of ice-cold water ahead. Meanwhile, the second team enters. Kai, Vesa,
05:40and Yari Yu. They fly through the system. Then Vesa freezes. Huataranenen's body is right there.
05:48Blocking the only way forward. Yari Yu sees it and loses control. Panic. Gas switching. Classic signs
05:56of oxygen toxicity or carbon dioxide overload. He dies. Right next to Huataranenen. Kai tries to
06:04calm him, but bro, sometimes there's no calming someone down at 400 plus feet. He sees what's
06:10happening. Sees Vesa stuck behind them and makes a brutal call. He leaves them both. All three
06:18survivors, Patrick, Kai, and Vesa, start ascending. They're under stress, running low on oxygen,
06:25skipping decompression stops. And that cold? It's hitting them hard. Kai's scooter dies halfway
06:31through. What should have taken 15 minutes now takes 45. And when he finally surfaces, the hole in
06:38the ice is gone, covered by a thin sheet of new ice. He smashes through it with his bare hands
06:46and drags
06:46himself out, completely alone. He thought he was the last one left. But later that night,
06:54hours later, he saw a light on in the van. Patrick and Vesa made it too. Two of their brothers
07:02were
07:02gone. The police shut the cave down. British rescue divers were flown in. Even they said, nope,
07:09too risky. So the Finns said screw it. A few weeks later, in secret, they came back. No media,
07:17no permission, just a promise to keep. They went back into that cave, past the same cold black holes
07:26where their friends had died, and pulled them out. No permits, no permission, just a middle finger to the
07:35ban, and a promise they refused to break. Let's rewind back to September 1978. Three American
07:44divers, John Granaroff, Mark Granroth, and Donald Minkard, waded into the warm, inviting waters of
07:51Vuliagmeni Lake, just south of Athens. It looked peaceful, but right underneath that calm water,
07:57a cave system so dangerous it's claimed lives for decades. I'm talking killer currents, unstable tunnels,
08:04zero visibility, and chambers that stretch out like an underwater maze. It's not a dive spot.
08:09It's a death trap. And bro, these guys had no idea what they were swimming into.
08:13Two thousand years ago, a massive earthquake cracked the earth wide open and formed this place.
08:19Since then, warm seawater flows in constantly, messing with salinity, messing with light,
08:24just creating total chaos under the surface. Fourteen tunnels branch off the main lake.
08:30One of them stretches half a mile underwater. You've got stalagmites, sheer drop-offs,
08:35tight squeezes, and endless dead ends. It looks stunning. But in that, you'll die here if you
08:40blink wrong, kind of way. And the danger wasn't new even then. Back in the 1940s, German divers tried
08:46mapping it. They didn't come back. So now back to 1978, Jan, Mark, and Donald. They weren't amateurs,
08:53but they broke every rule in the cave diving handbook. No guideline. No backup tanks. No
08:58proper lights. No plan means no chance. They went in deep. Way too deep. And at those depths,
09:04something called nitrogen narcosis kicks in. Kind of like being drunk underwater. Your judgment
09:10goes sideways. Reaction time slows to nothing. Somewhere in those dark tunnels, they got turned
09:16around. Disoriented. Panicked. And they never made it back. Rescue teams tried everything. Even dumped
09:23dye into the lake to trace currents and maybe spot their location. But the flows were too strong.
09:29The risks too high. The mission was called off. For almost 30 years, their bodies stayed hidden.
09:35Then one day, a local dive club went looking for someone else. And yeah, they found bones.
09:40Skeletons still in their suits. That's brutal, man.
09:49ocksだなの山なɒんここはごち
09:50POLICEの静光からの近年季の下で30�を早送り 逃説する última節の全方ので 大横を聞く場所沢内で30 см。担当を真空に高い、この鏡東の人類습니다
09:57.都城の川外の関に寒いにスラッシャーしたなどは、西海の厚に被告的ながら走って暗以外から
09:58videosをuh alcohonoか以降引っ充願することね。それた後、まとなって出現
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