Many Swiss also follow ice hockey and support one of the 12 teams of the National League, which is the most attended league in Europe. In 2009, Switzerland hosted the IIHF World Championship for the 10th time. It also became World Vice-Champion in 2013 and 2018. The numerous lakes make Switzerland an attractive place for sailing. The largest, Lake Geneva, is the home of the sailing team Alinghi which was the first European team to win the America's Cup in 2003 and which successfully defended the title in 2007.