Tickets for Sequoia National Park's Crystal Cave 2026 season go on sale March 16. The 2025 season sold out quickly.

JEWEL CAVE NATIONAL MONUMENT, S.D. — Caver Mike Wiles has helped document the far reaches of this cave that's a favorite Black Hills tourist attraction, but tours are available here year-round and ...

Carlsbad Caverns National Park in New Mexico offers unique and breathtaking limestone cave formations, hiking trails, and educational experiences.

While exploring caves along a riverbank, a group followed a tunnel that quickly led deep underground. The passage opened into massive chambers filled with crystal formations and towering limestone ...

Missouri is freckled with geologic features like caves and sinkholes. This is because the bedrock — composed of soluble rock like limestone and dolomite — is conducive to karst formation. Missouri has ...

The discovery of more than 100 prehistoric structures in the Cova Dones cave in Spain makes it one of the most significant prehistoric underground sites in the world. Archaeologists found stalagmites ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

Add Yahoo as a preferred source to see more of our stories on Google. "Please allow us some time to come to terms with his loss, as up until now we have been focused on the recovery,” his co-diver, ...

Local cavers detail the beauty of caves and what fuels their passion to keep exploring. The Central Indiana Grotto is a group of cavers who meet monthly in Indianapolis. Each year they host an event ...

1 of 4 — Cave Point Country Park at Door County in Wisconsin 3 of 4 — The Visitor Center at Cave of the Mounds. Blue Mounds, WI, United States, May 4, 2023. Cave of the Mounds, a natural limestone ...