The Aterno Valley is included within the Sirente Velino Regional Natural Park, a large area of about 50,250 ha which contains a wide variety of plant and animal species that together represent one glimpse into the biodiversity of the Apennines.

Furthermore, the widespread karst phenomenon helps to give the valley a completely original look; the numerous sinkholes in the area, similar to volcanic craters that open in the mountains and the Stiffe Caves together represent one of the major natural attractions of Abruzzo today.