L'Ametlla de Mar, also called la Cala ("the bay" or "the beach"), is a municipality within the comarca of Baix Ebre, situated in the coastal region between the "Cap de Terme" (to the North) and the "barranc de l'Àliga" (to the south). It is limited to the south by the boundary with El Perelló, to the north-west with that of Tivissa, the Ebro riviera, and to the north-east with that of Vandellós and l'Hospitalet de l'Infant.

Fishing continues to be one of the principal activities of the town. The port area of Ametlla has a large fleet of fishing boats which fish using various methods, such as trawling, and also has the principal fleet of tuna fishing boats in Catalonia. The port has a sailing club with 225 berths.

The museum of traditional pottery in L'Ametlla de Mar, located in the "urbanization" (recently built town or collection of houses) of Sant Jordi d'Alfama, opened its doors on 5 May 2001. Its origins, however, date from 1992 with the establishment of the Martí-Castro private foundation. Since the year 2000 the council of l'Ametlla de Mar has formed a part of the management.

The main festivals of the area are: 2 February, the festival of the "Mare de Déu de Candelera" (Literally: Our Lady of Candlemas), who is the patron saint of the village. During this festival various events take place such as a procession, concerts, "xarangues", displays of "Capgrossos" (Carnival figures with enormous heads) etc.; on 29 June takes place the festival of Saint Peter, who is the patron saint of fishermen, in which the patron saint walks aboard; on 29 May is the festival of "Corpus", during which the streets of L'Ametlla are decorated with extensive arrangements of flowers and leaves arranged in patterns or to form pictures and laid out on the asphalt of the street. Usually the people of the village stay up most of the night on the eve of the festival in order for the arrangements to be ready the next day. Finally, there is the festival of the Castell de Sant Jordi (which gives its name to the urbanization which is next to it).