Venture west into the Domeyko Mountains, where the mineral-rich Rainbow Valley reveals a striking palette of copper, jade, silver and violet—colours shaped over millennia by shifting environmental forces and erosion.
A gentle 30-minute walk offers an intimate look at the valley’s layered geological history.
Continue on to Hierbas Buenas, a site of remarkable pre-Columbian rock art. Etched into the walls of a natural shelter formed from compacted volcanic ash, these petroglyphs depict animals, symbols and enigmatic stories whose meanings remain partly shrouded in mystery – an extraordinary encounter with the desert’s ancient past.