El Chiflón is the name of two waterfalls: the main one, 120m high, and its little sister, Aroc Iris (50m), which you can reach on foot in 30min on a steep trail. This beautiful site, very popular with Mexicans for Sunday picnics, offers a chance to cool off in its natural pools with turquoise waters. You can also take a nice walk through the forest along the Río San Vicente. Swimming is only possible during the dry season (February-July).