
Hike /Schweiz Mobil
Trans Swiss Trail, Stage 25/32
AiroloOsco
- Distance
- 18.0 km
- Duration
- 5:15 h
- Ascent
- 760 m
- Descent
- 740 m
- Difficulty
- Moderate
- Fitness
- Hard
- Route type
- One way
- Season
- May - November
01/ Overview
The route
Far down in the valley, traffic roars on the motorway, while peace reigns up on the Strada alta. Magnificent view of the Leventina and Val Bedretto mountain ranges. Bright chapels gleam in villages and meadows. Osco was once an important centre for the transport of goods by pack animals.
The starting point is just a few steps from the Airolo bus stop. The mountain trail leaves the houses behind and alternates between open meadows and woodland. At the Oratorio di Sant’Antonio abate, it passes the first small church; later, the route heads to Brugnasco and the Oratorio di San Barnaba.
The route continues to climb via Altanca, where the osteria lies close to the trail. Not far from Forca, it reaches its highest point at around 1'420 m. Ronco and Deggio follow. East of the village, the Oratorio di San Martino stands on elevated ground, slightly apart from its surroundings; the mountain trail passes directly by it. Between open slopes, stretches of woodland and small settlements, the route continues via San Martino to Lurengo, passing Agritourismo da Paolin.
In the final third, the trail loses more elevation and reaches the church of San Bernardo before Freggio. It continues through woodland and across meadows to Osco. Shortly before the destination stands San Maurizio; a few steps later, the hike ends at the Osco, Paese bus stop.
02/ Along the route
What's along the way
Where the route climbs and where it descends. Hover the profile to find the spot on the map.
03/ Conditions
Current conditions
What to know before you set off. Closures and snow are re-checked every day.
Airolo - Stalvedro
From 9 Oct 2023 – Until 31 Mar 2027
Wegen der Baustelle des zweiten Gotthardtunnels ist der Weg gesperrt.
Madrano - Pasquéi
From 18 Apr 2024 – Until 5 Dec 2026
Vorübergehend geänderte Wegführung.
Madrano
From 26 Mar 2026 – Until 24 Mar 2027
Unterbrechung der Verbindung aufgrund einer durch den Fluss Canaria beschädigten Brücke.
How we check: Every night we match the route against the official closures and detours from the Federal Roads Office (FEDRO). Any reported closure that touches the route shows up here.
How we check: We look up a live public transport connection from your starting point to the stop closest to the trailhead. If it ends further away, the nearest stop may be a cable car or bus that isn't running right now.
How we check: Snow depth estimated daily at the lowest and the highest point of the route. Estimates: check the situation on site.
04/ Getting there
Getting there
From your door to the trailhead and home again, by train and bus or by car. Computed live from the timetable.
Or from
Outbound
Return
05/ Weather
Weather on the way
Forecast for the lowest and the highest point of the route.
Weather
06/ Trail & landscape
Trail & landscape
Which paths you walk on and the landscape they lead through.
07/ Snow
Snow on the route
Snow depths, new snow and forecast. Estimates: check the situation on site before you set off.
Snow Info
Comparative snow depth is only available from November 1 to June 30.
08/ Export
Take the route with you
Load the track onto your GPS device, print a route sheet for the trail or send the route to your hiking group.
Share
Send the link to friends or your hiking group.
Export GPX File
For hiking apps, GPS watches and navigation devices.
Print Route Sheet
A4 with map, elevation profile, waypoints and emergency numbers.





