The Grutas de García lie embedded in the Sierra del Fraile, their limestone chambers shaped by tectonic shifts that began during the Cretaceous period more than sixty million years ago. The caves remained undocumented until local rancher Bernabé de las Fuentes stumbled upon the entrance in 1843, though indigenous groups had long known of the formations. Commercial access arrived in 1948, when the first permanent walkways were installed and a cable car system was constructed to ferry visitors up the mountain face from the valley floor. Today the site draws geologists and casual visitors alike for its concentration of speleothems — stalactites, stalagmites, and flowstone curtains — some exceeding ten metres in length. The cave system extends roughly 2,500 metres horizontally, though guided routes cover a fraction of that distance. Fourteen named chambers include formations like El Teatro, where mineral deposits form natural stage-like tiers, and La Octava Maravilla, a column where calcite drips have fused floor and ceiling over millennia. Temperature inside holds steady near 17°C year-round, a contrast to Monterrey's summer heat. Access depends on the cable car, which climbs 700 vertical metres in seven minutes. The ascent offers unobstructed views of García municipality and the surrounding sierra, though the descent can be vertiginous for those uneasy with heights. Inside the caves, electric lighting traces the recommended path, but natural formations remain unaltered — no handrails mar the flowstone walls, and visitors walk the same uneven limestone their predecessors did. Grutas de garcía tickets provide entry to both the cable car and the cave interior, with separate fees for each component. The site closes Mondays for maintenance, a practice in place since the 1970s to limit human impact on the delicate calcite structures.