Actun Tunichil Muknal Cave
Actun Tunichil Muknal, often called the ATM Cave, is a mysterious cave that the ancient Maya believed was a doorway to the underworld. To explore it you wade and swim through an underground river with a guide.
It is famous for the ancient pots, tools, and sparkling crystal formations found deep inside. Adventurous visitors love the thrill of exploring a real cave by headlamp light.
Cave Adventure
Explorers wear helmets with lights and follow a trained guide through winding passages. Parts of the trip mean wading in cool water, which makes it feel like a real quest.
Sparkling Crystals
Deep in the cave the walls and old objects glitter with shiny crystal that formed over thousands of years. When the lights hit them, they sparkle like tiny stars.
A Maya Sacred Place
Long ago the Maya came here to leave gifts and hold special ceremonies. Today the cave is protected so everyone can learn about this ancient history.