Romería de San Antonio de Bastanes Activity · Petilla de Aragón, Sangüesa, Navarra Image of Petilla de Aragón, not of the place itself. A pilgrimage to the hermitage of San Antonio, in the Bastanes area, restored in 1988, held every 10 May. 10 de mayo Photo: Jialxv (CC BY-SA 4.0) What to see and do in Petilla de Aragón