It's the most challenging MTB route and to enjoy a wild and uncontaminated landscape we recommend a pedal assisted bike. The departure from Radicofani allows you to enter soon in wooded paths to reach after 10 km the pretty village of Celle sul Rigo where there is a Bike Point.

From Celle we turn north, not missing some stretches of paved roads.  The mandatory stop is at Monte Calcinaio at 732 meters above sea level, at the Astronomical Observatory, 9 km from Monte Calcinaio to Radicofani are still to be done through woods and pastures of great charm.