In the protected area Nature 2000, participants in limited amount seven hundred, start on the Letni (Summer) Bieg Piastów start line. Runners take the 21 km of the mountain half marathon and 10,7 km loop in the charming Izerskie Mountains. The Second edition of the Letni Bieg Piastow became also the final of the running series S-LAB. In the race take part Polish top mountain runners as Dariusz Kruczkowski, Robert Faron and many experienced cross country skiers as Mariusz Dziadkowiec- Michon. This Saturday Polana Jakuszycka full of sport attractions for kids and active lifestyle fans, run races for children, cross country roller-skating sprint and laser biathlon competition.