Giro dell'Abbraccio e Giogarello
Challenging route by mountain bike, preferably by e-mountain bike, although between Abbraccio Waterfall and Rifugio i Diacci there is a semi-natural staircase on which you have to put no small amount of effort to bring the bike up. Otherwise everything is rideable.
The trail starts from San Pellegrino, a hamlet of Firenzuola. Initial section on asphalt, then hard climb initially paved, then on rough terrain. Easy descent to Badia di Moscheta, where refreshments and water are available. Uphill on challenging gravel road to Giogarello, then uphill again on uneven trail. Arrived at a scenic point, descend (challenging) to Rifugio La Serra (water), from here long stretch on gravel road to Capanna Marcone, then descent, at times hostile to Mulino dei Diacci, then past Cascata dell'Abbraccio uphill stretch with bike on shoulder or otherwise to push along bumpy steps.
At the i Diacci refuge possibility of refreshment and water, then a long climb on gravel, then at the parking lot turn left and enter the woods above the Senio Valley first and then the Santerno. After a long up and down stretch a long challenging descent leads to Casetta di Tiara, from here on asphalt first downhill then flat you return to the starting point.