1. Castasegna to Colico

Join the national road or strada statale N°37 (SS37) by a passage that avoids detours. After the torrent Lovero which marks the border, go down to the right on the road below and parallel to the SS27. Follow it for 100m to the bicycle/pedestrian tunnel under the road. After the tunnel, take the winding track on the left, which goes up 150m along the Mera River to a footbridge. From now on, go down the left bank of the Mera to a small lake:

1. Take the road on the left at the hydroelectric power station. At the first bend in the road, continue straight on the San Barnaba path which climbs into the forest and then goes down again to cross La Mera again and reach the Santa Croce Ponteggio cycle path. Cross La Mera to return to the right bank. At the road bridge on the right, continue straight ahead on via Bregaglia. 
   
   
2. At the crossroads with via per Scilano, continue opposite on via della Conca. In the next yaw of the road, continue straight on the track via Bregaglia which crosses the Méra river to reach the village of Prosto. Take the road bridge to the left and turn right at the church in front of the bridge. Following this bank, reach Chiavenna via Maurizio Quadrio. Turn left on Via Giovanni Battista Picchi to reach San Lorenzo Basilica.
   
   
3. Turn right on the square to reach Via Francesco e Giovanni Dolzino, a narrow shopping street. At the end on the square of the fountain, turn left on Via Carlo Pedretti until you reach a roundabout. Take the second street on the right (Via Mario del Grosso) which runs along the Fiume Mera until you reach a bridge. Cross the river at this level and follow the other side by a path that passes near sports facilities. Before the confluence with the Torrente Liro, the path turns right to join a track and a bicycle/pedestrian footbridge to cross the torrent. 
   
   
4. After the footbridge, turn left onto the cycle path along the stream and then again onto the Mera River. Pass under the SP43 and continue on this bank of the Mera until you reach the next road (SP2 Via Trivulzia) which crosses the river. Turn left and then right after the bridge to follow the opposite bank. 
   
   
5. Cross the SP2 road a second time and continue on this straight track which, further on, passes under the SP2 for the third time. The track follows the bank of the Mera river to deviate from it and join the Torrente Valle del Pericchio and the SP2 before Novate Mezzola.
   
   
6. After the bridge, turn right (red/white markings) and follow the left bank of the stream to the shore of Lake Mezzola. Follow this shoreline to sports facilities where the path joins the railway. The track crosses the Torrente Codera and runs along the El Ranchero campsite before passing under the railway. At this level, it is possible to climb up to the Oratorio di San Colombano by the Via San Colombano which cuts off the SS36 road. Otherwise turn right after the tunnel to continue towards Verceia along the lake.
   
   
7. After Verceia, the track then follows the lake and the railway, taking advantage of sections of the old SS36 road. She deviates from the track for a moment to reach it further before reaching SP4 Via Regina.
   
   
8. Turn left on this road until the roundabout with the SS36. Follow this road to the right by taking the left sidewalk. Take the second street on the left (Via Don Luigi Guanella) then the second on the right (via Ezio Vanoni). At the crossroads with Via della Torre, turn right and take the second road on the left, Via Ambrosini Abele Medaglia d'Oro, which extends along a dirt road, sometimes muddy, towards the Adda embankment and then right on the embankment to the bridge over the Adda de la SS36. Turn left and cross the river using the protected footbridge. At the end of the bridge, go down to the left to pass under the SS36 and the railway and along the left bank of the Adda River. The track returns to Lake Como, crosses the Torrente Tavani and joins the shoreline under a fortified hill. 
   
   
9. At the foot of this hill, at the level of a bridge over the Torrente Inganna and solar panels, turn left on the track along the stream until you reach Via alle Torri (next bridge). Turn right before crossing the railway and continue until the roundabout on Via alle Torri. Continue along the railway line to reach the passage (Stazione) that crosses it and leads to the Via Nazionale. Turn right until the second street on the left (Via Padre Reginaldo Giulani) which leads to the destination.