Sam Meacham is the Director of El Centro Investigador del Sistema Acuifero in Quintana Roo, Mexico. An experienced cave diver, he remains committed to understanding the complex dynamics of the Yucatán Peninsula’s karst aquifer, as well as the people affected by it. He has extensive experience leading cave diving expeditions in the region, the most significant of which is the ongoing exploration of Sistema Ox Bel Ha and the adjacent Sian Ka’an Biosphere Reserve. Sam earned a Master’s Degree in Science in Natural Resources in 2012 from the University of New Hampshire, and he has been a Fellow of the Explorers Club of New York since 2000, a NASA Space Grant Fellow, and a Best of Adventure Honoree in 2008’s National Geographic Adventure Magazine. Sam has appeared in documentary films for CNN International, The Discovery Channel, PBS, NHK, National Geographic, BBC and BBC’s Natural History Unit, including the critically acclaimed “Planet Earth” series.