The water rose so fast it was impossible to tell ... In November, hikers found a rope and personal effects at the cave's ...

With permission to park near the cave entrance, we uncovered a vast underground system carved by flowing water over time. As we navigated through massive chambers and rushing currents, the sheer ...

Crystal Cave, the ancient marble cavern at the end of a steep half-mile hike in Sequoia National Park, is slated to reopen to ...

A cave diver's paradise, the Bahamas is home to an extensive network of life-sustaining underwater caverns chock-full of ...

Crystal Cave is reopening after a four-year closure, inviting visitors to marvel at its underground splendor. Tickets for ...

Bacteria color the water at a depth of 30 to 36 feet in Sawmill ... if they don't solve the problem and make it back to the cave entrance before their gas runs out, they're doomed.

Rails have slender bills and long legs that help them navigate through water-logged vegetation ... in the so-called twilight zone of caves—right at the entrance, where the light levels are ...