Sixty feet beneath the jungle floor in Mexico's Yucatán Peninsula, inside a limestone cave filled with water, Tom Stotmeyer was at an impasse. How was he going to get his stout frame through a ...

MEXICO CITY – A pair of cave divers said Monday they have found subterranean passages in Mexico's Yucatan peninsula that constitute the world's longest underwater cave system. British cave diver Steve ...

Here’s some chillingly beautiful shots showing what it’s like to cave dive the ‘El Toh’ cave in Yucatan, Mexico. It’s a completely different world down there. When you’re inside the cave with water ...

If the marine world is the least explored region of our planet, then underwater caves represent Earth’s final frontier—which begins to explain why I’m standing in the middle of a Mexican jungle gazing ...

The eastern Yucatán Peninsula study region is pierced by vast interconnected flooded tunnels, that function as underground rivers. The groundwater is the only source of potable water for the whole ...

Ron Fraga invariably received a hero's welcome when he visited the Yucatan Peninsula of Mexico. When the Mayan people saw him coming, they would throw open their arms and exclaim with glee, "Fraga!" ...

Cave-diving scientist Patricia A. Beddows of Northwestern University is a member of an international team of researchers and cave divers this week announcing the discovery in an underwater Yucatán ...

At the not-so-ripe age of 39, I finally got my PADI dive certification in Taganga, Colombia, and proceeded to dive 40 more times over the next two years. These aquatic adventures included swimming ...

In the underground rivers and flooded caves of Mexico's Yucatan Peninsula, where Mayan lore described a fantastical underworld, scientists have found a cryptic world in its own right. In the ...

I’ve gone diving and snorkeling all over the world. But there’s something about cenotes that never gets old. I’m obsessed. Each one is like its own secret swimming hole. Some look small on the outside ...

When seasoned ocean diver Michael Agar tries his hand at cave diving, he finds--once he overcomes those fear "gremlins"-- that there's a whole other world down there. Traveling to the state of ...