A must-do! A half-mile walk through a spectacular underground cavern, located in the heart of the largest system of underground rivers on the planet. It is the ideal way to learn about the extraordinary limestone rock bed of the region, as well as to the sacred meaning attributed to these sites in Maya cosmology. Midway through the journey, we will enjoy a beautiful cenote (natural freshwater sinkhole). This is a breathtaking cave adventure in a safe, exclusive, and off-the-beaten-track environment. The excursion also includes a walk along a jungle path where you will learn about the plant and animal species that inhabit the Yucatan. Includes guide, transportation, equipment, water bottle, snacks.