The Elfstedentocht (Dutch pronunciation: [ɛl(ə)fˈsteːdə(n)tɔxt]; West Frisian: Alvestêdetocht [ɔlvəˈstɛːdətɔχt], English: Eleven cities tour) is a long-distance tour skating event on natural ice, almost 200 kilometres (120 mi) long, which is held both as a speed skating competition (with 300 contestants) and a leisure tour (with 16,000 skaters). The Elfstedentocht is the biggest ice-skating tour in the world.