L'Ametlla de Mar Winter Main Festival Activity · l'Ametlla de Mar, Baix Ebre, Tarragona Image of l'Ametlla de Mar, not of the place itself. L'Ametlla de Mar's Festa Major d'Hivern is held in the village formed in the 18th century as a fishing settlement in the Golf de Sant Jordi, whose fleet was the first in the Principat dedicated to tuna and which today is a benchmark for Mediterranean bluefin tuna. Photo: (Hans Hillewaert) (CC BY-SA 3.0) What to see and do in l'Ametlla de Mar