Tarrés Main Festival Activity · Tarrés, Garrigues, Lleida Image of Tarrés, not of the place itself. The festa major of Tarrés, in Garrigues (Lleida), is celebrated at two points in the year: the festa major d'estiu, for the Mare de Déu d'Agost and Sant Roc, on 15 and 16 August, and the festa major d'hivern, for Sant Isidre, on 15 May. Photo: gpatgn (CC BY-SA 3.0) What to see and do in Tarrés