Actun Loch Tunich (the “Mother of all Caves”) experience starts with a vigorous hike up into the foothills of the Maya Mountains. The edge of the Actun Loch Tunich sink hole sits over 300 feet above the basin below, and fully trained caving guides will rig a system of rappelling ropes for your descent. The first 10 feet provides the adrenaline, the next 200 feet provides an unforgettable experience, while the last 100 feet takes you down through the rain forest growing at the bottom of the sink hole.