Monistrol de Calders Main Festival Activity · Monistrol de Calders, Moianès, Barcelona Image of Monistrol de Calders, not of the place itself. The Festa Major of Monistrol de Calders is celebrated on 1 August, the feast of Sant Feliu, patron of the village; since 2010 the Festa de Sant Antoni Abat has also been revived, between the end of January and the beginning of February. 30 de juliol - 4 d'agost Photo: Gustau Erill i Pinyot (CC BY-SA 3.0) What to see and do in Monistrol de Calders