Parque Natural de Izki Nature · Arraia-Maeztu, Cuadrilla de Campezo-Montaña Alavesa, Álava Declared a nature park in 1998 (Decree 65/1998), it covers 9,143 hectares spread across Arraia-Maeztu, Bernedo, and Campezo. It holds Europe's largest reserve of Pyrenean oak (Quercus pyrenaica) and the largest concentration of birch trees in Álava. Its highest peak is Mount Kapildui (1,177 m), a refuge for golden eagle, peregrine falcon, bearded vulture, and griffon vulture. Photo: Basotxerri (CC BY-SA 4.0) What to see and do in Arraia-Maeztu