End of May in Kuusamo. The call of the Karhunkierros is irresistible – come and experience Finland’s most beloved hiking trail, transformed into a runners’ paradise! NUTS Karhunkierros offers diverse distances, from a novice’s joy to an ultra runner’s dream. Embrace the awakening of spring nature and live the thrill of trail running amidst the breathtaking landscapes of Oulanka National Park. Choose your distance and join the celebration where every step epitomizes the communal spirit of trail running!