 In 1923, the municipalities of Cervo, San Bartolomeo al Mare, Diano Arentino, Diano Borello, Diano Calderina, Diano Castello, Diano San Pietro, and Villa Faraldi were added to Diano Marina; in 1925, the communities of Cervo, Diano Arentino, Diano Castello, and Diano San Pietro were reconstituted as separate municipalities.The main industry in the Diano area are tourism-related activities, especially in the summer.The region attracts tourists from all over Europe due to its mild climate.