15 DEEPEST Holes on Earth (P3)

 15 DEEPEST Holes on Earth (P3)

The Black Hole  of Andros

while the Bahamas are home to many blue holes in the oceans on one of the islands is something far less welcoming and much more mysterious it was found on South Andros and is referred to as a black hole because of the dark color of its water it's been measured to be around a hundred and fifty four feet deeper and rather than being formed by water erosion this hole has been formed by chemical erosion this is a place of important scientific interest because the water here is just like what the oceans were around three and a half billion years ago and can show us what it was like when the first life-form could begin to emerge only official science missions are allowed to dive here that soon becomes clear why at a depth of around 60 feet there's a three-foot thick purple layer that's made up of extremely toxic bacteria that are surrounded by hydrogen sulfide as you approach it it looks so dark than at first you'd think it was the floor of the hole but beneath it is a whole different world it's a boundary that separates the oxygenated water above with the deoxygenated water below and it this region that researchers are most interested in exploring it's not fully clear what is down there but it's hoped that improved diving technology will allow teams to explore it more fully than ever before it's

Son Doing cave

 have a song dumb cave in the faun narky ban National Park in Vietnam was only first discovered in 1991 but after a recent exploration it's been found to be the largest known cave anywhere on earth at 3.1 miles long 660 feet high and 490 feet wide you could easily fit a New York apartment block inside and still have room to spit more recently a river in the cave has been found to connect with a nearby cave so it's now regarded as being much bigger than had originally been thought it's deep within the forest so is it very difficult to get to and has been carved by water from the limestone rock over the past five or six million years it contains some of the largest stalagmites ever seen with some reaching up to 230 feet tall an enormous cave poles have been found that are the size of baseballs the cave also has its own ecosystem with creatures that have specifically adapted to its environment efforts have been made to limit the number of visitors to preserve the cave as best as possible but with current plans being to build a cable car through it these attempts may ultimately be in  vain 

Hole in Oregon's Lost Lake

Oregon's Lost Lake normally covers an area of about 79 acres and during the winter is quite shallow and surrounded by pine and willow trees when you see it like this there doesn't seem to be much this unusual about this place it's just like any other lake right but you'd be wrong because the true mystery of this place only reveals itself during the summer months the level of the lake begins to lower and act about the same time every year a giant hole opens up within it that sucks away all of the water the lake completely vanishes and they soon covered by a flourishing meadow but how is this possible the answer is that there are two large lava tubes that lead from the lake and it's through these that all the water escapes they're always there and don't just decide to open whenever they please but they do have a limited capacity that they can drain at any one time during the fall and winter when it's the rainy season the amount of water that enters  the lake exceeds the amount that's being drained out so it fills up when things are drier in the summer the opposite  becomes true and that's why the lake seems to magically disappear

Gates Of Hell

gates of hell if there ever was a place on earth that's truly the Gateway to the underworld then there's a hole in the Karakul desert in Turkmenistan that certainly can lay claim to be anything in 1971 Soviet geologists was searching for natural gas deposits and drilled through the crust about four miles away from the small village of Dewey's they hadn't no idea how much gas they were about to find and it would turn out to be far more than they could handle a large cavern opened up and the drilling rig along with some of the scientists fell into the hole a crater was formed that was 230 feet wide and 65 and a half feet deep and it began to release vast quantities of methane into the atmosphere even back then this was seen as a dangerous problem so scientists came up with a solution that set fire to it to burn all of the methane and haven't run out within a week they threw a grenade in to start the fire but their plan didn't go as expected almost fifty years later the flames continued to burn and it's actually become one of the country's most popular tourist sites despite investigations into how to extinguish the flames once and for all however no one has any solution beyond letting it burn itself out next time someone lectures you about the amount of methane that's released to make that delicious steak you've ordered just point them in the direction of this place