He was involved in one of the most famous rescue missions the world has ever seen. Now, almost seven years on, Jim Warny — who formed part of the team that saved the lives of 12 boys and their ...

A Florida park with the deepest freshwater cave system in the country is celebrating 78 this week. Weeki Wachee Springs State Park, home to the world-famous mermaids, first opened to the public on Oct ...

The Hranicka Abyss is at least 1,325 feet deep, and likely goes down further. — -- A team of explorers believe they have discovered the deepest known underwater cavern the world in eastern Czech ...

June 15, 2006 — -- "Nightline" joined forces with writer Tim Zimmerman and filmmaker Gordon Hiles, who documented an ambitious dive to one of the world's deepest, most dangerous underwater caves.

Every day, crowds flock to the Lukács Thermal Baths in Budapest, soaking in warm mineral-rich pools as yellow trams clatter along Frankel Leó Street. Most never suspect that just yards away, beneath ...