Pico de la Torrecilla y Sima GESM Nature · Tolox, Sierra de las Nieves, Málaga Image of Tolox, not of the place itself. La Torrecilla, the highest peak of the Sierra de las Nieves, crowns a karst massif that contains the Sima GESM system, a cave with more than 1,100 meters explored and an unusual coexistence of high-mountain and subtropical flora. Photo: José Antonio Berrocal Pérez (CC BY-SA 4.0) What to see and do in Tolox