This was no ordinary cave expedition—this deep river cave had us wading through water, dodging fallen debris, and discovering incredible underground formations. From eerie salamanders to the unknown ...

Two decades later, I organized a series of expeditions to investigate new deep caves, using dye traces in ... Vega braved a cascade of near-freezing water. Also unsuccessful, he discovered to ...

If you are someone who is looking for a unique adventure, head underwater cave diving. These caves, located all over the ...

Veteran cave diver Brian Kakuk lifts a more than 3,000 ... Many astrobiologists believe such conditions may exist in pockets of liquid water deep beneath the surface of Mars or in a sea under ...

They also never sleep - deep in caves there is no day and night - so they're constantly swimming. There are several types of cave and most are created by water - fresh, saline or both - dissolving or ...

After trekking through the forest for 45 minutes and crossing a river three times, travelers venture into the gaping mouth of the cave by wading in chest-deep water. Inside, you'll squeeze through ...