Salto de Tzumpantitlan is a small waterfall park near Tonatico, with footpaths, a swinging bridge, and views down into the ravine. It is a modest outing rather than a polished attraction, but it adds a natural stop to a trip built around Ixtapan de la Sal and the nearby caves.
Facilities can be rough, so come for the walk and the waterfall rather than expecting a manicured municipal park.