Leaving the quiet village of Dongio, you head south along a peaceful 5143 trail that follows the foot of a steep rock face to which a very special construction clings, the «Casa dei Pagani». Built in the Middle Ages as a protection against enemy attacks, these unique fortifications stud the entire Valle di Blenio.
Further south, you skirt the village of Marogno, with its traditional buildings like the Gatti houses, a notable example of 19th century architecture built by valley dwellers who had emigrated to make their fortunes as ice-cream manufacturers in London. Shortly after Morogno, you arrive in Motto from where, with a brief diversion, you can reach the church of San Pietro nearby: one of the most notable examples of Romanesque architecture in Switzerland.
Now following a cycle path along the site of an old railway line between Biasca and Compravasco, you return to Dongio from where you can complete the excursion with a visit to the church of San Remigio: another jewel of the Ticino Romanesque period.

km 0 - km 7
The entire route takes place on well-constructed tarmac byroads. It features gradients of up to 6%. However, at San Remigio chapel at km 4.8, there is a gradient of 10% over a distance of 30 m. At km 1.6 in the Motto district, visitors must cross a busy main road without a pedestrian crossing. This requires caution, but the road is visible in both directions.