Polignano a Mare(Peghegnéne in the dialect of Bari) is an Italian city of 17,797 inhabitants in the province of Bari, in Puglia. The oldest part of the town stands on a rocky outcrop overlooking the Adriatic Sea at 33 kilometers south of the capital. The country’s economy is mainly based on tourism, agriculture and fishing. Of natural interest are its caves and historically important are the historical center and the remains of Roman domination. Among the latter, the bridge of the Via Traiana, still viable, through Lama Monachile. Since 2008, Polignano a Mare has always received the Blue Flag award given by the Foundation for Environmental Education to the coastal resorts that meet European quality criteria related to parameters of bathing water and the service provided in relation to parameters such as the cleaning of beaches and the marinas.