Argonavtski maraton with start and finish in Vrhniki has become one of the best-organized cycling events in Slovenia in its 14-year history. The routes run through the picturesque landscape of Ljubljansko barje and the Polhograjski Dolomiti. Participants on the 86 km and 63 km routes ride under a road closure system with time measurement, while the 24 km route is designed for families with children from 6 years old onward.