Fiestas de Santa María Magdalena Activity · Errenteria, Donostialdea, Gipuzkoa Image of Errenteria, not of the place itself. Patron saint festivities in honor of Santa María Magdalena, which begin on July 21 with the chupinazo (opening rocket) and end on the 25th, with July 22 as the main day. 21-25 de julio Photo: Ekaitz Santazilia (CC BY 4.0) What to see and do in Errenteria