Legendary cave diver Sheck Exley spent decades pushing the limits of underwater exploration, setting records and developing many of the safety rules used in modern cave diving. In 1994, he joined an ...
In April 1994, legendary cave diver Sheck Exley attempted to reach 305 meters inside Mexico’s Zacatón sinkhole — a depth few humans had ever approached. As pressure increased to 27 times that of the ...
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