Las Grutas de Cacahuamilpa

Las Grutas de Cacahuamilpa Thermal Springs are natural geothermal features near the famous Cacahuamilpa Caves in the state of Guerrero, Mexico, where bicarbonate thermal waters associated with the extensive karst limestone system of the Sierra de Guerrero emerge in proximity to what is one of the world's largest cave systems — the Grutas de Cacahuamilpa National Park, whose underground caverns stretch for 27 kilometers with chambers rising up to 70 meters in height. The Cacahuamilpa cave system, formed by millions of years of karst dissolution in the Guerrero limestone plateau, produces a spectacular underground landscape of stalagmites, stalactites, and naturally lit chambers that has attracted scientific and tourist interest since the 19th century. The thermal spring bathing near Cacahuamilpa combines the geological wonder of one of Mexico's most extraordinary cave systems with the restorative properties of naturally warm bicarbonate groundwater filtered through the same ancient limestone formations that produced the caves.