Thirty kilometers from Palenque, these 25m-high curtains of water aren't the most dramatic water features in the area, but the turquoise river pools make excellent swimming spots. Amenities include a cross-river zip-line (M$50) and a simple restaurant. From Palenque, take a combi to the well-signed highway entrance (M$38, 30 minutes); it's a 700m walk in.