In the Caves National Park are Cacahuawamilpa which are perhaps the largest caves in the world. Nationally it is one of the most visited by lovers of caving sites. These caves are located in the Sierra Madre del Sur , Mexico . Mainly cover the state of Guerrero in the municipalities of Pilcaya , Tetipac and Taxco , but also extending in the state of Morelos in the municipality of Rio Coatlan .
They were discovered in 1834 by Manuel Saenz Peña in 1936 and declared a National Park. Considered among the most impressive in