The SUBTRIDENTE "Silvano Caracchini" organizes diving courses and releases certications with teaching FIPSAS - CMAS (Confederation Mondiale des Activités Subacquatiques founded by Jacques Cousteau). Founded in 1966 by a small group of fans of underwater fishing, over the years the association has achieved excellent results both in fin swimming and in underwater archeology (take, for example, the discovery of the "GALEONE" in Pesaro in 1978 and the numerous digs that have led to the creation of an exhibition of artefacts in Laurana Hall of Pesaro). It boasts a racing team in spearfishing and takes care of civil protection activities. In cooperation with the Natural Park of Monte San Bartolo and the Reefcheck, the club has trained some nature diving guides, in order to promote the emerged and submerged coastal environment  in front of the Park. The guides escort and assist individuals or groups during scuba diving tours, snorkeling tours and hiking along the shoreline emerged.