La Sénia Main Festival Activity · la Sénia, Montsià, Tarragona Image of la Sénia, not of the place itself. La Sénia's Festa Major is held in a village where in 1937, in the midst of the Civil War, an airfield was built in the rearguard of the Ebro front; once the war ended, the furniture industry turned it into a benchmark for the sector in Catalonia. Photo: Viquipèdia / Wikimedia Commons (CC BY-SA) What to see and do in la Sénia