Granera Main Festival Activity · Granera, Moianès, Barcelona Image of Granera, not of the place itself. According to the Geografia General de Catalunya (1910), the main festival of Granera, in the Moianès (Barcelona), was celebrated on the Sunday following Sant Mateu, that is, after 21 September. Photo: Xavigivax (CC BY-SA 3.0) What to see and do in Granera