Las Grutas de Rancho Nuevo
Spectacular limestone stalactites and stalagmites are illuminated along a 2,475-foot concrete walkway inside the labyrinthine caves known as Las Grutas de Rancho Nuevo (or Las Grutas de San Cristóbal), which were discovered in 1960. Kids from the area are usually available to guide you for a small fee. You can rent horses ($5 per half hour) for a ride around the surrounding pine forest, and there's a small restaurant and picnic area. Many tour operators offer trips here, and that's the option we strongly recommend. The caves are also a quick taxi ride from town.
