The secession of el Masnou Historical milestone · el Masnou, Maresme, Barcelona Image of el Masnou, not of the place itself. The fishermen's quarter situated at the foot of the coast separated from Teià in 1825 and constituted itself as a municipality of its own. The independence recognised the weight of a population of shipowners, captains and shipwrights turned towards the sea. 1825 Photo: Friviere (CC BY-SA 3.0) What to see and do in el Masnou