The Grutas de Cacahuamilpa National Park in Guerrero, Mexico, is best known for the Grutas de Cacahuamilpa Caverns, which are one of the largest cave systems in the World. It is also home to the Grutas of Carlos Pacheco, a smaller system, as well as two subterranean rivers which have carved out tunnels in the rock. The park has extreme sports attractions such as rappelling, and rock climbing in Limontitla Canyon. as well as the two underground rivers to explore. It also has a small botanical garden, a pool and places to camp.
The park in located in the Sierra Madre del Sur, primarily in the northeast part of Guerrero state. This section of the Sierra Madre del Sur is made of rock, mostly limestone, that was formed under oceans millions of years ago. The caverns extend through the municipalities of Pilcaya, Tetipac and Taxco of Guerrero state, and extend into Morelos state in the municipality of Coatlán del Río. The parks extends over 2,700 hectares of land, and is located southeast of Mexico City, near the silversmithing town of Taxco.