La Crosa Volcano Nature · Bescanó, Gironès, Girona A volcano with the widest crater on the Iberian Peninsula (about 1,250 metres in diameter), formed by a violent phreatomagmatic eruption; a protected natural area that can be toured via a circular route of about 3 km. It extends across the municipalities of Bescanó and Aiguaviva. Photo: Arnaugir (CC BY-SA 3.0) What to see and do in Bescanó