The Bieg Piastów is the biggest cross-country skiing marathon in Poland. The race is part of Worldloppet Ski Federation and held in Classical Technique.
The Bieg Piastów ski marathon is held annually in Jakuszyce in the Jizera Mountains, a part of Szklarska Poręba – one of the most popular tourist destinations in Poland, only about 130 km from Wrocław and Prague.
