from abandoned man-made mines to natural sinkholes and underwater pits we reveal the deepest most dangerous holes on the planet that will make you think twice before taking that stroll as they have swallowed machines animals and people hello guys welcome to another episode of for evergreen in this video we explore the 10 most dangerous holes on planet earth and you should stick around for number one as some of these earth's deepest places have stories as dark as their depths number 10 blue hole red sea also known as the diver cemetery the blue hole is located in dahab egypt with a depth of 328 feet while diving in the blue hole might not be dangerous itself this underwater sinkhole has a unique feature which makes it incredibly lethal at around 181 feet down there's a rock tunnel known as the arch that connects the hole with the red sea because the water is so clear light at the end of the tunnel makes the arch look a lot shorter than it really is when in reality the tunnel is 85 feet long this length together with a current that constantly flows into the blue hole from the red sea slows the progress down these factors make it so deadly for even the most experienced divers who attempt it thinking it will be easy unknown to them for its deceptive length and current the blue hole is associated with a death toll of between 130 to 200 a famous death here was 22 year old yuri lipskis who took a video camera with him descending uncontrollably to the bottom eerie as seen in the footage panics and tries to fill a buoyancy compensator but he's too deep and the pressure stops him from rising off the bottom his remains were collected the next day by deep water diving specialist tarik omar number nine door to hell gates of hell the door to hell in derweez turkmenistan is a soviet experiment that turned out to be bare unintended consequences in 1971 scientists initially wanted to use the remote desert site to drill for natural gas the ground beneath however collapsed as the drilling rig hit a natural cavern filled with gas and they had to stop the drilling the hole is approximately 230 feet wide and 65. 5 feet deep fearing the spread of poisonous gases into the surrounding towns geologists intentionally lit the natural methane gas by tossing a grenade into the hole anticipating that it burned off within a week that was more than four decades ago and it has however been burning continuously ever since its glowing is visible from derweeze each night fittingly the name derweez means gate in the turkmen language so locals have dubbed the burning hole the gate to hell and is actively being encouraged as a tourist attraction site by the turkmen government at night camel spiders attracted to its light and warmth fall to their deaths in this pit's fiery bowels and if you think this place is not dangerous the number one will have you ossified number eight the cola super deep borehole the project to drill into the earth's surface began near mermax in prachensky district russia in the 1970s when soviet scientists wanted to learn more about the earth's crust over two decades they managed to dig more than 39 600 feet seven and a half miles into the earth so deep that if mount everest was placed into the hole its peak would still be underwater by more than 10 560 feet two miles the cola borehole is also further down than the wreck of the titanic which is 12 500 feet down into the ocean however in 1992 they had to stop drilling because the temperature was around 180 degrees celsius which was far much hotter than the scientists had projected it would be all this drilling wasn't for nothing though as some scientific discoveries were made the researchers found out that there is water at 12 kilometers into the earth's crust additionally they found 24 new types of long dead single-celled organisms and gained access to rocks that were 2. 7 billion years old hidden underneath this rusty lid is the cola super deep borehole if you fell down the hole it would take around 4 minutes to reach the bottom locals in the area say that the hole is so deep you can hear the screams of people being tortured in hell hence its nickname the well to hell before we move on to our next most dangerous hole leave us a like smash that subscribe button and turn on notifications and you'll win 10 years of incredible luck number 7 the devil's sinkhole [Music] the devil sinkhole in texas usa commonly known as the satanic sinkhole is a huge vertical cavern that reaches 400 feet down from a 50-foot opening carved from water erosion over thousands of years the devil's sinkhole's precise history is still unknown to scientists however artifacts found inside the cave date from 400 to 2500 bc among the artifacts are arrowheads and burnt rocks suggesting that the whole might have been used as a native american burial site three people are known to have died by falling into the sink hole in modern times with the most recent in 1972 which led to the area being transferred to the state of texas in 1985 and opened to the public in 1992.
today access to the area is only available through advanced reservations do you suffer from coroptophobia then this is definitely not the taurus destination point for you as the sinkhole is home to more than 3 million mexican free-tailed bats that terrifyingly emerge screeching from the depths at sunset during april through october number 6 dean's blue hole dean's blue hole popularly known as the deadly diving hot spot located in long island bahamas is one of the deepest underwater sinkholes on earth at 663 feet deep taking its name from a local bahamian family at the surface the dean's blue hole has a diameter of 115 feet but after descending 66 feet under the hole winds considerably into a cavern with a diameter of 330 feet formed over 15 000 years ago dean's blue hole is thought to be the result of a sinkhole formed by rainwater soaking through cracks in limestone bedrock when sea levels were lower the hole is visible above water because of the deep blue hue of its water compared to the light blue around it it's home to all sorts of marine life including tropical fish turtles and seahorses since april 2008 it has been the site of the vertical blue free diving competition legend says that the hole was dug by the devil himself and that he's still there dragging those that dare to swim there to their deaths in 2013 nicholas mavoli died shortly after surfacing from diving into dean's blue hole from a pulmonary edema excess fluid in the lungs the first death in an international free diving competition in 2008 three women drowned when one fell into the hole and the other two were trying to save her the youngest victim was just 14. cops arrived at the scene to find the three women's bodies floating by the shoreline after the horrific accident number five kimberly mine [Music] the kimberley diamond mine in south africa also known as the big hole is claimed to be the deepest hand-dug hole anywhere in the world at over 700 feet the big hole was excavated by 50 000 diamond miners with shovels and pickaxes between 1871 and 1914 it is so large that it is visible from space however the operation didn't come without tragedy as between 1897 and 1899 7 853 patients were admitted to kimberly hospital following accidents on site at least 1114 died mostly from tuberculosis and other sicknesses caused by the horrendous conditions the miners lived and worked in legend has it that if you listen carefully while standing at the opening you could still hear the cries the miners long gone after mining stopped the hole became the most visited tourist attraction in the area and today it has a museum just next door number 4 berkeley pit the berkeley pit in montana usa is a 1780 foot deep abandoned copper mine and now one of the only places in the world where you can pay to see toxic waste it was closed in 1982 and has slowly been filling with water ever since and because the rocks and the mine contain heavy metals and chemicals like sulfuric acid the site now holds back more than 6. 5 trillion gallons of toxic acidic copper colored water in 2016 a large flock of several thousand snow geese landed in the pool pit to avoid a snowstorm worried officials tried to scare the birds out of the water and stop more landing but eventually around 4 000 of the geese were killed by being exposed to chemicals in the water would you visit this toxic copper-colored lake leave a like and let me know in the comments below number three glory hole the glory hole is a spillway of the monticello dam usa the monticello dam was completed in 1957 its function is to keep people safe by making sure water levels in lake berryessa don't overwhelm the dam and cause floods rather than spilling over the edge of the dam when the water grows higher it is funneled into a spillway the glory hall which is 72 feet wide and 700 feet deep it can hold a maximum of 362 000 gallons of water per second and water only spills out into the glory hole when it reaches 15.
5 feet above the level of the funnel and the last time this happened was in may 2006 for emily schwalleck the 72 feet wide drain was a deadly trap as the 41 year old was swimming in the lake in 1997 when she found herself being pulled towards the spillway after she had crossed the buoy line designed to keep bathers out of harm's way [Music] number two sean bourie built between 800 and 900 a.
