Fiestas de Irurtzun Activity · Irurtzun, Sakana, Navarra Image of Irurtzun, not of the place itself. Irurtzun's main festival is celebrated over five days around the third Wednesday of July; the village also celebrates San Martín on 11 November, Santa Águeda on 4 February, and the Trinidad on the weekend after Pentecost. tercer miércoles de julio Photo: Ibon from Basque Country (CC BY 2.0) What to see and do in Irurtzun