Tulelake, CaliforniaFormed by half a million years of volcanic activity, Lava Beds National Monument contains the highest ...

The cave and its multiple branches are among 550 that crisscross a fragile, sinkhole-prone geologic region renowned for Carlsbad Caverns. Standing in the inky depths of Parks Ranch, I cannot see ...

“I used to like exploring the biggest caves in the world because I wanted to be the first person to go there,” says Alvarez, who grew up exploring Tennessee’s many caverns. Once he ...

Filled with otherworldly stalagmites, stalactites, and subterranean creatures, this cave is a fascinating journey into the ...

The Natural Bridge Caverns are home to the biggest commercial cave system in Texas. Above-ground adventures include zip lining, a rope course, a maze, gem mining, shopping and dining. But the ...

Join Jason and Nikki Wynn as they explore the breathtaking Kingdom of Tonga, a stunning part of the South Pacific that ...

Outdoor enthusiasts and history buffs alike are invited to explore one of Indiana’s hidden natural treasures during Cave ...

On the northern edge of the Ozark Mountains, Onondaga Cave is one of two known caves that encompass part of a Missouri state ...

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