Take one of the most unique tours in all of America. During your 70-minute guided tour, you will get to drift through a 1,600-foot water power tunnel blasted out of solid rock. Explore the historic ...

When the summer sun is blazing, there’s no better way to cool off than by heading underground. Caves offer a naturally air-conditioned escape, along with a chance to explore some of the Earth’s most ...

I'm going to crawl through THAT? My palms turn clammy when I peer into a 14-inch slit that will take me far into a wild, undeveloped cave in Christian County. Sunlight fades to blackness as the ...

Hidden beneath the hills of Kentucky, these caves thrill adventure seekers with winding passages, underground wonders, and ...

THREE RIVERS, Calif. (KFSN) -- A steep half mile hike brings visitors to Crystal Cave. As you approach the entrance the air gets colder-- a big spider web gate first built in 1940 allows bats to ...

Step into an underground lava cave hike in Arizona, where cool air, dark tunnels, and rugged volcanic walls turn a simple walk into a bucket list adventure.