Santa Oliva Main Festival Activity · Santa Oliva, Baix Penedès, Tarragona Image of Santa Oliva, not of the place itself. The Festa Major de Santa Oliva (Baix Penedès, Tarragona) has its origin in the Vot del Poble: the town made this vow to the Mare de Déu del Remei after being spared from the cholera epidemic that severely struck Vilanova i la Geltrú in 1854. Since then, this vow has been observed on the last Thursday of August, giving rise to the town's main festival. Photo: Enric (CC BY-SA 4.0) What to see and do in Santa Oliva