00:00Are you ready to dive into the most dangerous waters on the planet?
00:05Just kidding.
00:06Please put your swimming gear back on the shelf
00:09and trust me, it's much safer to look at them from a distance.
00:13Some of them are full of sharks and others full of acid
00:17and I don't even know what's worse.
00:19Probably the ones that are so deep and scary
00:22that many divers never come back for them.
00:25I'll let you choose your own top worst.
00:30If you've ever been to Texas in the summer,
00:32you know how hot it gets
00:34and you'll be happy to jump into some ice-cold water
00:36without thinking too much.
00:39Brightly colored and a bit out of this world,
00:41Jacob's Well looks like the perfect place for that.
00:44Settlers first found it around the middle of the 19th century.
00:48They noticed a watering hole spouting water up to 5 feet
00:51and decided it would be a good drinking fountain.
00:55The well is 120 feet deep on average
00:58and they believe it's the second largest fully submerged cave in Texas.
01:03So this well with the cool water lures in some brave folks
01:07who jump in from an outcropping nearby.
01:10I guess I'd skip on that one. What about you?
01:13Some divers go down a whole hundred feet
01:16and maneuver around the passages of the underwater cave.
01:20And they all say it's not a walk in the park.
01:23Several folks never come back from the well
01:25and that's why they say it's one of the most dangerous diving spots in the world.
01:30All those underwater passageways become so narrow at one point
01:34that you can get stuck there with all the equipment.
01:38The second problem is that the cave is really deep
01:41and it's dangerous even on the surface.
01:43It's only 12 feet in diameter and has rocks around it
01:46so you can hurt yourself while flipping into it.
01:49And if all this wasn't convincing enough and you still want to go,
01:53you'll need special permission to do it.
01:56Now, Hanakapiaj Beach in Hawaii is exactly what comes to mind
02:01when someone says perfect beach.
02:03So I know you'll be tempted to go there.
02:05But in reality, it deserves to be listed in the dictionary under danger.
02:10If you still go there, you'll notice a wooden tally board
02:13showing the number of swimmers who never got out of the water.
02:16You'll see more than 80 marks.
02:19That's an unofficial number, so there could be more.
02:23The source of danger here is extra strong rip currents
02:26and totally unpredictable high surf.
02:29There are no big reefs in the ocean in that area
02:32so nothing stands in the way of strong currents.
02:35If you're feeling adventurous and still decide to go in the water
02:38and end up caught in a rip current,
02:41the nearest safe shore is around 6 miles away.
02:44So the chances of surviving are really low.
02:48Plus, the beach is so remote, there are no lifeguards around.
02:52So it'll just be you against the ocean.
02:55And the ocean has more chances of winning.
02:58That's why Hanakapiaj isn't even fit for experienced swimmers and surfers.
03:03There is definitely no shortage of beaches in Hawaii,
03:06so you can choose something else for your getaway.
03:10Guri, or Fraser Island, if Guri also seems impossibly hard to pronounce for you,
03:15is teeming with diverse wildlife and stunning landscapes.
03:19But before you head off to this largest sand island in the world,
03:23let's talk safety.
03:25Dingoes roam the island,
03:27and they aren't your average golden retrievers from the neighborhood.
03:31These guys can be unpredictable and dangerous to humans if you provoke them.
03:36So you should never feed them or interact with them
03:39and keep your food and other stuff on you
03:41if you don't want to draw their attention.
03:44Trust me, you don't.
03:46The next threat is snakes hiding in tall grass.
03:50Visitors must stick to marked trails and watch out,
03:54especially at night.
03:56There are also some super-venomous spiders around,
03:59and if you think you can hide from all that fauna in the water,
04:02surprise, surprise, great white and bull sharks will be waiting for you there.
04:07You can meet them if you go any deeper in the water than up to your knees.
04:12Plus, the currents are pretty strong here,
04:14and the ocean conditions can change quickly or seem calmer than they actually are.
04:20There are no lifeguards ready to save your life in case something goes wrong,
04:24so you're swimming at your own risk.
04:27And if you think you can just call for help using your phone,
04:30I wouldn't rely too much on getting good coverage here.
04:34The weather on the shore here also changes with no warning
04:37and brings sudden rainstorms, strong winds, and temperature ups and downs.
04:44Our next destination today is the Blue Lagoon,
04:47but don't get your hopes up.
04:49We aren't going to that gorgeous spa in Iceland,
04:52but to this UK version.
04:55Swimming here is like bathing in bleach.
04:58Not your favorite pastime? Mine neither.
05:01Authorities keep issuing warnings not to swim there.
05:04They call the once limestone quarry in Harper Hill
05:07probably the most dangerous water in the country.
05:11Those tropical-looking blue waters have high alkaline pH levels from limestone leaching.
05:17But it doesn't stop thousands of people from coming here during hot weather.
05:22Your skin, eyes, and stomach won't thank you for a visit here.
05:27You might also experience cold water shock
05:30or bump into one of the many objects that have been dumped in there over the years,
05:35from car wrecks to basic rubbish.
05:39In March of 2020, the situation got so bad
05:42that they even dyed the water of the Blue Lagoon black to deter prospective swimmers.
05:49In August of 2014, some locals found a lake in the middle of the desert in Tunisia.
05:56It gets really hot there, so I'm sure you'd also want to jump in there immediately.
06:01The new body of water got the nickname Mysterious Lake
06:05and actually became a great mystery.
06:08I hope you appreciate the pun.
06:10Hundreds of people came here to swim in the clear, cool water.
06:14But a few days later, the lake turned dark green.
06:18The locals didn't care about this and continued to bathe in it anyway.
06:23When scientists and geologists arrived at the place,
06:26they announced that the lake was stagnating.
06:29It didn't refresh itself from underground streams,
06:32and the rains didn't feed it either.
06:34That's how the water became moldy and dirty.
06:38The lake had some algae and a lot of harmful bacteria that are dangerous to the human body.
06:44Scientists also found out that the land in this region had phosphate deposits.
06:50This substance can decay.
06:52But even that didn't stop people from bathing in the lake in the middle of the desert.
06:57Where it came from is still a mystery.
07:00Some experts think that heavy rains have filled a hole in the ground with water.
07:05Another, more popular theory says that an earthquake had formed a lake.
07:10The seismic activity must have torn the earth's crust above the water table.
07:14And then, underground springs had filled the crevice.
07:18In theory, the lake could drain back out one day just as suddenly as it had appeared.
07:24So, hurry up if you want to see it!
07:32I guess you're better off not trying it,
07:34especially if we're talking about the big hole in Kimberley, South Africa.
07:39150 years ago, there was a flat-topped hill there.
07:44Then the news spread that someone had found big diamonds in the area.
07:49Thousands of people with picks and shovels rushed to the area.
07:53It became the largest hand-dug excavation in the world and one of the deepest.
08:00The mine was growing and water seeped into the pit and the rock from the walls moved down the slopes.
08:06They had switched to underground mining with tunnels and shafts.
08:10It became way too expensive,
08:13so they decided to shut down the mine after finding around 6,000 pounds of diamonds there.
08:19Now, the former mine is filled with roughly 130 feet of water.
08:25Swimming here is really dangerous because you can't see the bottom and the walls of this lake are too steep.
08:32So, I guess you're better off taking your diamond rush elsewhere.
08:37That's it for today!
08:38So, hey, if you pacified your curiosity, then give the video a like and share it with your friends.
08:43Or if you want more, just click on these videos and stay on the Bright Side!
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