Burkhard Bilger writes about the ongoing effort to explore what may be the deepest cave in the world, located in Mexico. It’s “a kind of Everest expedition turned upside down,” he observes.
Deep caving expedition was exploring area called Chevé located in the Sierra Juárez mountain range in Oaxaca state, Mexico. It is area which has huge number of cave entrances and underneath the mountain there net of caves.
The basic formation of the Chevé system is a little bit like a stairs step. You have long underground cliffs often with water coming down them and then you have narrow horizontal passages that can be extremly tight. Occasionally you get to tunnels which are completelly filled with water which gathered there from countless underground waterfalls.
So not even the cavers are climbing from those cliffs in the dark and freezing water they are also caring heavy bag with food, clothes and scuba diving things. All you might be useful during the exploration.
Deep caving is done in stages. Usually cavers go down for sometime they set a camp there and come back. Then they go down again and push a little bit futher they set another camp and they do it like this back and forth untill they get deep as they can.
Chevé cave’s deepest point has been measured at 4,869 feet (1,484 m) deep and it currently holds the distinction of being the deepest cave in the Americas, and one of the deepest caves in the world.