Here’s how to plan a trip to Mammoth Cave National Park.

Add Yahoo as a preferred source to see more of our stories on Google. After a four-year closure, Crystal Cave is inviting visitors to "marvel at its underground splendor," Sequoia Parks Conservancy ...

For some people, the desire to explore a cave is almost irresistible. It’s another world of travel underground, full of potential wonders and possible mysteries waiting to be solved. Has anyone been ...

You may not realize that the U.S. is filled with hidden, mysterious caves. Several are part of the national or state parks, and they’re worth the excursion. Whether you are a thrill-seeker looking for ...

With their ice formations and stalagmites of various sizes and shapes, ice caves are one of nature's many wonders that are truly a sight to behold. From Russia's Kunger to Iceland's Dobšinská, here ...

Did you know that Vancouver Island is home to more than 1,000 caves? Horne Lakes Cave Park on central Vancouver Island is just one area where you can experience this majestic underground ecosystem.