Dolina del Mencal Nature · Pedro Martínez, Los Montes, Granada Image of Pedro Martínez, not of the place itself. The municipal term of Pedro Martínez, within the Geopark of Granada, holds the Mencal doline or sinkhole and paleontological sites from the Eocene-Oligocene series, of great geological value. Photo: Ismael Olea / Ismael Olea (CC BY 4.0) What to see and do in Pedro Martínez