sunken shipwrecks. Around the island there are many diving centers offering scuba diving services with equipment rental and guided tours. On the island of Caprera is the Centro Velico Caprera, considered one of the largest sailing schools in the Mediterranean Sea, founded in 1967. The Yacht Club Costa Smeralda, located in Porto Cervo and founded in 1967, is the main yachting club on the island. Annually the island hosts the Loro Piana Super Yacht Regatta and the Maxy Yacht Rolex Cup. Part of the Louis Vuitton Trophy was held in the Maddalena archipelago in 2010. Vento di Sardegna ('Wind of Sardinia') was a sailboat sponsored by the Autonomous Region of Sardinia. Its skipper, Andrea Mura, won the Single-Handed Trans-Atlantic Race in 2013 and in 2017, the Two Handed Transatlantic Race (Twostar) regatta in 2012 and the Route du Rhum. 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 into areas for advanced and beginner/intermediate windsurfers. There is also a restricted area for kitesurfing. Many freestyle windsurfers went 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, the western wind accelerates between the islands and creates the wind that makes Porto Pollo popular among windsurfing enthusiasts. Cagliari hosts regularly international regattas, such as the RC44 championship, Farr 40 World championship, Audi MedCup and Kite Championships. In view of the 36th America's Cup, scheduled to take place in New Zealand in 2021, Luna Rossa Challenge has chosen Cagliari as place for its preparation. Winter sports Four ski resorts are located on the Gennargentu Range at Separadorgiu, Monte Spada, S'Arena and Bruncu Spina; they are equipped with ski schools, chairlifts, skilifts and ski equipment hire. Traditional sports S'Istrumpa, also known as Sardinian Wrestling, is a traditional Sardinian sport, officially recognized by the Italian National Olympic Committee (C.O.N.I.) and the International Federation of Celtic Wrestling (I.F.C.W.). It shows similarities to Scottish Backhold and the gouren. Istrumpa's wrestlers participate annually at the championships for Celtic wrestling stiles. Sardinia boasts ancient equestrian traditions and is the Italian region with the highest number of horse riders (29% of population) and boasts also fine darts tradition, which many believe originated in the Sassari region of the country towards the end of the