ベンチュリ
Porto Pollo, north of Palau, is a bay well known by windsurfers and Kitesurfers. The bay is divided by a thin tongue of land that separates it in an area for advanced and beginner/intermediate windsurfers. There is also a restricted area for kitesurf. Many freestyle windsurfers gwent to Porto Pollo for training and 2007 saw the finale of the freestyle pro kids Europe 2007 contest. Because of the Venturi effect between Sardinia and Corsica, western wind accelerates between the islands and creates the wind that makes Porto Pollo popular among windsurfing enthusiasts.