The single trail begins, after a good 1000-metre ascent. It runs more or less along the ridgeline, to Alpe San Romerio and then via Viano along the old smugglers' routes and through vineyards via Baruffini down to Tirano, the final destination on the route.
Along the «King's Stage» from northern Italy to the southern portal of the tunnel and over the pass. The mountain hike leads past the crystal-clear Palpuognasee lake, over Weissenstein Alp or Crap Alv up to the Fuorcla Crap Alv (2466 m altitude) and steeply down into Val Bever to the idyllic stage destination of Spinas.
Carry identification as this is a cross-border route.
To shorten the section you can also pre-order a taxi (alpie taxi) from Poschiavo.
Snowfields possible into summer months on high-level sections