Actun Tunichil Muknal (ATM) is located in the Tapir Mountain Nature Reserve within the Cayo District of Belize, Central America. This cave is nestled deep within the Belizean jungle, around 12 kilometers (7.5 miles) southwest of the town of San Ignacio. The area is known for its rich biodiversity and is a significant archaeological site, showcasing ancient Mayan artifacts and skeletal remains. Access to the cave involves a guided tour that typically starts with a drive from San Ignacio followed by a hike through the rainforest and crossing several streams to reach the cave entrance.