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 ...

This dive focuses on entering an underwater cave with no prior record of entry. Visibility, navigation, and exit planning become critical immediately. One mistake could mean disorientation or ...

Ever dreamed of diving into crystal-clear freshwater caverns, surrounded by ancient rock formations and shafts of sunlight piercing the depths? If you’re curious about Mexico’s famous cenotes and want ...

The fight to preserve Mexico’s portals to the underworld The fight to preserve Mexico’s portals to the underworld 11,000-year-old mine in underwater cave surprises archaeologists 11,000-year-old mine ...