The Barbotto Path, almost completely surrounded by greenery, crosses 2 Naturalistic Oases for a total distance of 12.2 km; The difference in altitude is 628 meters and the travel time is calculated in 4 hours and 15 minutes on foot. We recommend parking at the Cemetery and following the path clockwise towards the center of Rontagnano, a residential area located on the top of a hill between the Uso valley and the Savio valley. A Malatesta castle once stood there (12th century), some ruins of which still remain. The keep of the fortress was transformed into a bell tower in the 18th century. The nearby Church of St. Blaise preserves some interesting furnishings, including a 15th-century wooden kneeler and an 18th-century organ.

Leaving the town, take 123b and then continue on 111 which runs along the Naturalistic Oasis of Tornano, the first naturalistic area of this route.
Continuing on the route (Path 111) you soon face the ascent to Monte Spelano, covered by a beautiful forest, once a frequent destination for excursions by the local population. The War Memorial Cross, about 5 meters high, is clearly visible at the top. Just before M. Spelano we touch on the Barbotto locality, a name known to cyclists for the difficult climb there from Mercato Saraceno, characterized by a 365-meter drop and a last km with gradients up to 18 percent. In Barbotto there is a monument dedicated to the well-known cyclist and unforgettable champion Marco Pantani.
After a steep descent on the 111 then taking the Path 123 you descend gently to the “La Clorofilla” farm, continue on path 123: here we are already inside the second oasis, the Naturalistic Oasis of Rontagnano.

Along this section of the trail, one soon encounters a detour that leads to the “Triton Basin” where specimens of Tritons (Triturus carnifex) can be seen in a stone trough: these are salamander-like amphibians that live in still waters characterized by the absence of fish and pollution. From here it is a short time back to the starting point by continuing on 123c.