Toro Muerto is a vast field of petroglyphs in the desert northwest of Arequipa, about 170km from the city. Thousands of dark volcanic boulders were carved by pre-Inca cultures over a period of centuries, creating an open-air gallery in an extraordinarily barren landscape — black rocks scattered across white sand, with the Andes visible on the horizon.
The site is accessible by road via the town of Corire (3-4 hours from Arequipa). There are no facilities and limited shade; go early in the morning before the sun becomes intense. A guide is recommended to navigate the spread-out site, though independent visits are possible. Combine the visit with a stop at the valley's vineyards and pisco distilleries if time allows.