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Hranice Abyss: The Deepest Blue Hole In The World

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The earth on which we live is full of wonders beyond our comprehension. Some came about long before the time of humans, leaving beautiful yet puzzling structures in its wake. The ocean is a particular hotspot of incredible constructions, born through erosion and other natural forces taking place over millions of years. The structures called “blue holes” are an example of such constructions. A particularly unique blue hole is located in the Czech Republic, named Hranice Abyss. As of now, Hranice Abyss is considered the deepest blue hole in the world, and as such, remains an unusual and bewildering landmark for future research. Hranice Abyss, located in Hůrka National Park, is said to have been created by the collapse of a cave ceiling, the cave being formed by an aggressive flow of mineral water into limestone. Currently, Hranice Abyss measures 404 meters (1,325 feet) deep, though the bottom of the hole actually has not yet been reached. The mineral composition and low temperature of the waters means that exposure to these elements is harmful to both …show more content…

Blue holes come about when the ceiling of an underground cave structure collapses, and with oceanic blue holes, the ocean above floods it. There are inland blue holes as well as oceanic blue holes. Due to their connection to inland blue holes via cave network, oceanic blue holes are also affected by the tide. At certain times, the sinkholes will “blow” (pumping out cold subterranean water which may hold hydrogen sulfide and algae, turning the water milky as a result) or “suck” (taking in the surrounding crystal-clear seawater). This makes it necessary to dive into these sinkholes only at specific times. The oceanic sinkholes create a stunning rich cerulean blue spot in the water, visible particularly with the larger holes such as the Great Blue Hole in

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