We start from Casa Rondelli, on the outskirts of Follonica, near a large roundabout that exits onto the S.P. 152 in the direction of Punta Ala, Castiglione della Pescaia, and Grosseto. Pedalling on level ground along the path of the old Via Aurelia, which runs parallel to the railway, you pass through Scarlino Scalo (5). You go past the entrance ramp onto the S.S.1 Aurelia (9) and continue until you reach the fork on the right (12.5), where you follow the signs for Aurelia, Ribolla and Lago dell'Accesa, and turn on to the S.P. 31 "Collacchia" road.
Soon after, turn left again in the direction of Ribolla, Tatti, and Lago dell’Accesa and pass under the S.S.1 Aurelia. Pedal uphill for about 1 km, and afterwards go downhill until reaching a crossroads, where you leave the S.P. 31 and turn left onto the S.P. 49 "dell'Accesa" (15.3) in the direction of Massa Marittima. After a couple of kilometers you cross a bridge over the River Bruna and start to gain altitude, pedalling until reaching the hilltop near the Il Fontino Agriturismo (18.8).