We have explored the surface of Mars, telescopes look into the farthest corners of the universe, and even despite this, we continue to find corners on Earth that have not yet been studied. Of course, caves are among such places.
Ordinskaya, Russia
Ordinskaya Cave is located on the southwestern outskirts of the Orda village of the Perm Territory, on the left bank of the Kungur River. It is the longest underwater cave in Russia and the largest gypsum cave in the world. The length of the surveyed passages of the cave is 4600 meters. At the same time, the dry part of the cave takes only 300 meters, and more than 4000 meters - under water.
Mammoth cave, Kentucky
The Mammoth Cave is the longest in the world - the known duration of underground passages is about seven hundred kilometers, and the unknown is about a thousand. The finds in the cave indicate that the first man appeared here two thousand years before our era, although at that time our ancestors little resembled modern people.
Son Dong, Vietnam
The cave is located near the border of Vietnam and Laos and is one of the three largest underground systems in the world. It is all the more surprising that they found it quite recently - in 1991, when a local farmer Ho-Han came across a hole in the ground into which a stream went. British cavers, who were the first to explore the cave, were amazed - for almost two and a half million years, the cave was unknown to people.
Deer Cave, Malaysia
Before Son Dong was discovered, the Deer Cave was considered the deepest cave in the world. At the moment, the cave is the leader in the number of tourists visiting it - more than 25 thousand people descend into the dungeons every year. Such a flow is not at all surprising, because only here you can look at the unique speleogenesis - stromatolites, which are so bizarre that they resemble strange fantastic animals.
Blue Grotto, Italy
Imagine the deepest blue in the underground galleries created by nature itself, and understand why the caves on the island of Capri are considered one of the most beautiful places in the world.
Krubera cave, Georgia
Krubera is one of the deepest caves in the world currently known and is home to some strange creatures such as the transparent fish.
Marble Caves, Chile
For six thousand years, the waves of the sea beat into the underground storage of marble in order to end up with such a stunning visual effect.
Antelope Canyon, Arizona
Sand and water can work wonders, especially if you devote several millennia to it. Arizona canyons are an unconditional miracle of nature, which amazes not only with bizarre shapes, but also with the colors of rocks, sandwiched in a spectrum from red to brown.
Vantajokull, Hotel Iceland
Glacial caves are 99.9% of the time formed by water flowing through the ice. But in the case of the Icelandic ice cave Vantajokul, everything happened differently - corridors and halls in the ice were formed as a result of volcanic activity, which only added beauty and fantasticness to the cave.
Swallow Cave
In the morning, flocks of birds fly in a spiral, gaining altitude, until they reach the exit from the cave. In the evenings, swifts return to the cave, and they dive in flocks of several dozen individuals until they reach the level of their nesting site in the cave. This has been going on day after day for thousands of years. The Cave of the Swallows became the prototype for James Cameron's film "Sanctum" and attracts adventurers from all over the world. However, this is not at all surprising - after all, this is the only cave in the world into which you can jump with a parachute.
