As we navigate the maze-like passages, we stumble upon a hidden cave deep within the mine, leading us into an incredible underground world. With ropes guiding the way, we descend into crystal ...

Discovered in 1999 inside an abandoned mine in Southern Spain, Pulpí Geode is the largest crystal 'cave' of its kind in the world. But what exactly is a geode and how do crystals form inside them?

The cave is one of about 275 known caves in Sequoia and neighboring Kings Canyon National Park. The park’s only publicly ...

The cave system reopens on May 23. Visit the Sequoia Parks Conservancy website to get tickets for the tour. You can visit from May 23 through September 7, 2025. The tour times are between 9am and 3pm.

Naica’s Crystals Cave, maybe the most amazing underground wonder on Earth, was discovered by chance inside the deep mine of Naica, in the State of Chihuahua, Mexico. It is a true geode: a cave ...

Visitors will be able to enjoy a half-mile loop through the narrow passages and steep sections of the stunning marble cavern ...

ActionAdventureTwins Huge Crystal Discovery Inside Pettyjohn's Cave | Part 2 Posted: March 26, 2025 | Last updated: March 26, 2025 We ventured deep into Pettyjohn's Cave, aiming to reach areas no ...

Keoni Alvarez, a 31-year-old activist and filmmaker who has battled developers trying to build atop burial caves, says that whenever human remains are found inside a lava tube, they render the ...

Crystal Cave, the ancient marble cavern at the end of a steep half-mile hike in Sequoia National Park, is slated to reopen to visitors this summer after four years of closure.The cave features a ...