The focus of a visit to the park is this spectacular dry (usually) watercourse bounded by sheer sandstone cliffs. Condors soar on thermals, and guanacos, rheas and maras can be seen in the shade of algarrobo trees along the sandy canyon floor. A series of enigmatic petroglyphs carved into oxidized sandstone slabs are the first stop on the standard visit, followed by in-canyon highlights such as the Chimenea, whose impressive echo is a guaranteed hit; the Catedral formation and the clerical figure of El Monje.
