Sierra Salvada Nature · Ayala/Aiara, Cuadrilla de Ayala/Aiara, Álava Mountain range extending about 25 km across Álava, Vizcaya and Burgos, with Eskutxi (1,180 m) as its highest peak; it is declared a Special Protection Area for Birds (ZEPA) and included in the Natura 2000 network, home to 224 species of fish, amphibians, reptiles, birds and mammals. Photo: OI-10-g.leanizbarrutia (CC BY-SA 3.0) What to see and do in Ayala/Aiara