An iron spider and gate secures the entrance to Crystal Cave on Thursday, May 22, 2025. The marble cave, closed for four years due to both fires and severe weather, has reopened to guided tours.

Cayman Crystal Caves (Grand Cayman) is ranked #4 out of 14 things to do in Cayman Islands. See pictures and our review of Cayman Crystal Caves (Grand Cayman).

Crystal Cave in Sequoia National Park, California, reopens for the season, offering guided tours and a magical underground experience after a 4-year closure.

After four years of closure, Crystal Cave is reopening this month in Sequoia National Park. Learn why it was closed, how to book a tour, and more.

There are 200 bats inside Crystal Cave. While the animals here are healthy, they've become a focal point for researchers from across the country as they try and find a cure for the white nose ...

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 travel in and out.

In the Cave of Swords (120 m underground), water temperatures cooled at a quicker rate than in the deeper Cave of Crystals. Gypsum crystal nucleation was favored over growth, meaning a greater ...

DUBUQUE, Iowa — This journey to eastern Iowa and the Mississippi Masterpiece takes us down below. The Crystal Lake Cave in Dubuque was first discovered in 1868.

Crystal Cave in Sequoia and Kings Canyon National Parks, CA will be closed in 2022 because of road damage from fires, Sequoia Parks Conservancy announced.