Arizona stole the heart of author Roger Naylor 50 years ago. He's explored every corner and written seven books. Here are the 10 places he loves best.

With over 400 miles of explored caverns and passages, Kentucky's Mammoth Cave National Park has plenty to offer the ...

The Lava River Cave outside of Bend is a mile deep and 60 feet tall. Here's how to explore Oregon's longest lava tube.

Kartchner Caverns, southeast of Tucson near Benson, is one of Southern Arizona's top attractions. The cave, operated by the state parks department, opened a new room, the Big Room, to the public ...

Indiana's longest cave tour is approximately 80 minutes long, with sights like the Midwest's largest deposits of Ice Age bones and fossils, along with a 40-foot waterfall.

As the Indiana weather heats up, you're probably looking for your next outdoor adventure to be of the cooler variety. And lucky for you, these caverns and caves typically range from 50 to 60 ...

A cave tour business is reopening after its owners suffered multiple tragedies.

Cave tours in Cave City came to a halt after the March tornado. Then, the family took another blow. Now, they're set to reopen.

Kartchner Caverns State Park maintains a consistent 72 degrees with 99% humidity, offering a cool retreat from Arizona’s summer heat.

Louisville Mega Caverns recently opened its reimagined Historical Tram Tour, an underground ride it calls a "journey through the hidden depths of Louisville's rich past." ...

Two years after the deadly capsize of a Lockport Cave tour boat, a number of lawsuits have been filed for wrongful death and negligence.

Cascade Caverns, Texas’ oldest public touring cave, reopens after flooding, offering tours and showcasing rare wildlife in the Hill Country.