This marathon descent is interesting from the panoramic and technical points of view, especially when the water level is high. The first 5 kilometers are of intermediate difficulty. You can observe the mighty forests until Čezsoča, where the easy and panoramic section begins. You can admire beautiful views with white beaches and mount Kanin in the background. The next section is where The Chronicles of Narnia: Prince Caspian was filmed in 2007. The marathon continues with the view of the wonderful 106 meter high waterfall Boka, where also our classic descent starts. The marathon ends at Trnovo.