
ATM Cave
Ranked #1 Sacred Cave in the World by National Geographic.
The Journey Within
Actun Tunichil Muknal, also known as the "Cave of the Stone Sepulcher," is a major Mayan archaeological site that includes skeletons, ceramics, and stoneware. The most famous resident is the "Crystal Maiden," a young woman's skeleton that has become calcified over centuries, giving it a sparkling appearance.
This is not just a tour; it's an expedition. You'll hike through the jungle, swim through crystal-clear waters, and squeeze through tight passages to witness history exactly where the Maya left it over a thousand years ago.
Safety & Regulations
- • Cameras are strictly prohibited inside the cave.
- • You must be accompanied by a licensed specialized guide.
- • Physical fitness is required (swimming and climbing).


The Archaeological Vault




Ready to step into the Underworld?
This tour fills up weeks in advance. Secure your spot on our official booking platform.
Book Official ATM Tour