Santa Bàrbara Main Festival Activity · Santa Bàrbara, Montsià, Tarragona Image of Santa Bàrbara, not of the place itself. Santa Bàrbara's Festa Major is held in a municipality on the right bank of the Ebro settled from the War of the Spanish Succession of 1714, whose economy has since been based on olive groves and oil production. Photo: Eva Pla Domingo (CC BY-SA 4.0) What to see and do in Santa Bàrbara