Hranice Abyss, Sinkhole in Hranice, Czech Republic.
The limestone cavity extends to a confirmed depth of 473 meters, with 404 meters below water level in the eastern region of Moravia.
The first written record of this geological formation dates from 1580 when physician Tomáš Jordán described a water surface releasing unpleasant gases.
Local inhabitants share tales about a knight named Miguel whose carriage plunged into the depths, leading to supernatural sightings near the water.
The water temperature maintains a constant 15 degrees Celsius throughout the year, influenced by thermal springs and regular rainfall patterns.
Scientists employ specialized remote-controlled submarines to explore the lower sections, as human divers cannot reach the extreme depths of this formation.
Location: Olomouc Region
GPS coordinates: 49.53200,17.75078
Latest update: May 27, 2025 06:46
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