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Nature & Environment

World's deepest underwater cave revealed

By T.K. Randall
October 1, 2016 · Comment icon 5 comments

Cave diving can be extremely perilous. Image Credit: CC BY 2.0 runeng
Divers have discovered an underwater cave in the Czech Republic which descends to a depth of 1,325ft.
Venturing through cramped, pitch black corridors of rock deep below the ground might seem like a terrifying ordeal at the best of times, but imagine donning scuba gear and attempting to dive down beneath the surface of an underwater cave... it's enough to make anyone feel claustrophobic.

For Polish diver Krzysztof Starnawski however it's all in a day's work, and now this intrepid cave explorer has managed to identify an underwater sanctum that is deeper than any other on Earth.

Situated in the Czech Republic, the cave, which is known as Hranicka Propast, was first explored back in 1999, but now following a two-year expedition, divers have discovered that it actually descends as far down as 1,325ft, making it the deepest underwater cave in the world.

Reaching the bottom was no easy task, especially as it is only possible for a diver to descend to around 400m using conventional scuba gear. To explore the rest of the cave, the team used a remote-operated exploration vehicle.
"My intention was not to achieve the deepest dive by a human, but to assist the exploration by the ROV," said Starnawski. "In this cave we wanted to explore beyond the 400-meter limit."

"It can't be done, so far, by a scuba diver in the cave. So I invited Bartlomiej Grynda from GRAL marine, with his custom-built ROV, to send the robot as deep as possible to explore the cave."

The team found fallen trees and branches resting on the cave floor which suggested that this immense cavern, which is thought to be part of a natural fault line, has been changing shape.

"The results were astonishing," said Starnawski.

Source: Live Science | Comments (5)

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Recent comments on this story
Comment icon #1 Posted by jules99 8 years ago
Comment icon #2 Posted by Clair 8 years ago
Thank you!
Comment icon #3 Posted by DieChecker 8 years ago
400 meters is remarkable. I wonder how far above sea level the water filled part of the cave starts? If it goes below the -120 meters that the last glacial maximum drove down sea level to.
Comment icon #4 Posted by Adampadum123 8 years ago
Can't wait to hear more about this
Comment icon #5 Posted by AustinHinton 8 years ago
Caving is dangerous, even more so when it's flooded. I hope they are careful. 

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