La Minerva de Calella Activity · Calella, Maresme, Barcelona La Minerva is the name by which the Festa Major (main festival) of Calella, in the Maresme comarca (Barcelona), is known; it is held on 23 September with popular and traditional events typical of the town's Catalan festas majors. segona quinzena de setembre Photo: Joan GarciaBadalona (CC BY-SA 4.0) What to see and do in Calella