sentences:  Influenced by its white, fine sand beaches, natural rock-cliff shores, secluded coves and warm temperatures (water temperatures reaching a minimum 15 °C), the local economy absorves a constant number of summer visitors and foreign vacationers.During the summer the population increases ten-fold with visitors, who occupy vacation homes, rented apartments and campgrounds, helped by the classification of many of its beaches as Blue Flag beaches, including the popular "Praia do Espingardeiro", "Praia Pequena" and "Praia dos Buizinhos".In front of the island of Pessegueiro is one of the more popular beaches, attracting windsurfers, boaters and sport fishermen to the waters off the coast.