Sant Jaume d'Enveja Main Festival Activity · Sant Jaume d'Enveja, Montsià, Tarragona Image of Sant Jaume d'Enveja, not of the place itself. Sant Jaume d'Enveja's Festa Major is held in a municipality in the southern half of the Ebro delta that was established in 1978 on separating from Tortosa and passed in 1990 from the Baix Ebre to the Montsià. Photo: Masquer11 (CC BY-SA 4.0) What to see and do in Sant Jaume d'Enveja