I organized a series of expeditions to investigate new deep caves, using dye traces in cave streams to probe Arabika’s potential depth. In 2001 a team led by Ukrainian Yuri Kasjan set a world ...

A Twinkling Wonder Tucked away in New Zealand, the Waitomo Glowworm Caves offer a celestial experience. Visitors glide ...

Krubera Cave is both the oldest and one of the most dangerous caves in the world. The main cavity measures over 7,200 feet ...

At age 75, Vadevino Alano keeps up a brisk pace as he strides through the forest on the way to the Armadillo’s Den — a ...

Take a deep breath and dive below the surface with cave-diving experts and scientists in the video above. Find out what it takes to plunge into the dark and mysterious world of underwater caves. Caves ...