Actun Tunichil Muknal or (Cave of the Crystal Sepulchre) was a sacred place to the prehistoric Maya of Belize, who first began to conduct their ceremonies during the later terminal classic period (700-900AD). The cave was named after the sacrificial chamber within the cave where the most famous of the human remains, known as "The Crystal Maiden" was found. This is a skeleton of a teenage girl, probably a sacrifice victim, whose bones have been completely covered by the natural processes of the cave, leaving them with a sparkling appearance. At the entrance of the Cave we will be outfitted with the necessary equipment preparing us for our journey into the underworld. Time in the Cave is three hours before returning back to base camp.