The itinerary, called "Sentierelsa", starts from the San Marziale bridge and runs for 2 km to reach in the end the località of San Giorgio. The path, characterized for its evocative and windy track, offers the great view of the waterfall cascata del "Diborrato", 15 meters high, deep 10, that during the 1930s and 1940s was the swimming location for the inhabitants of Colle. Keep going and you’ll find the Grotte dell'Orso, caves that have the shape of a bear. You’ll finally reach the "Gore Rotte", where there is another entrance to the park, with some small bridges in Tibetan style.

The itinerary continues for 1 kilometre in direction San Giorgio where there is a river cross. Under this area you can find "Conchina", the "Masso Bianco" , the "Nicchia" and the "Spianata dei Falchi", called in the past "Colle seaside". In the path are present many stairs, river cross and many signs to explains what you’re looking at. Many are also the animals that can be observed.