Belize is home to some of the most fascinating cave systems in the world, offering unique underground adventures for ...

In those ancient days, standing at the entrance to Actun Tunichil Muknal, and any cave for that matter, was like standing at the entrance to hell. Xibalba wasn’t just home to demons, though.

ATM Cave Belize-Actun Tunichil Muknal is ranked #5 out of 16 things to do in Belize. See pictures and our review of ATM Cave Belize-Actun Tunichil Muknal.

Exploring the ATM Cave is not a casual activity. It's a guided, physically demanding, and immersive journey into the "underworld" that requires hiking, climbing, swimming, and resilience.

Less than a mile inside Belize’s Actun Tunichil Muknal (ATM) cave, where sunlight rarely reaches, tiny green shoots cling to the limestone walls. Illuminated only briefly by the glow of tourists ...

I first heard about the Actun Tunichil Muknal (ATM) Cave in 2011. Heavily shadowed photographs of a complete adolescent skeleton — known falsely as the Crystal Maiden — coupled with descriptions of ...

In Belize's ATM Cave, details of ancient Maya religious sacrifices come into focus as new research creates a picture of how rituals were used to re-enact the Maya creation story.