Innovative river trekking that, in full respect of the flora and fauna of the river, allows the discovery of the streams of the Mercure/Lao river between Viggianello and Rotonda, in the Pollino National Park. Three types are proposed: easy (1.5 km in the Mercure river, suitable for everyone); intermediate (2.5 km in the section of the Mercure river with a greater water flow, from 7-8 years of age); canyon (3.5 km upstream in the Mauro torrent, between ravines, waterfalls, natural pools and rocky walls).