The Lake Basin of Lago Tremorgio


Varozzei (Airolo-Pesciüm)

Varozzei (Airolo-Pesciüm)

The impressive lake basin of the Lago Tremorgio is the center piece of this high alpine route that starts in Alpe Pesciüm and winds up in Rodi-Fiesso. The route hugs the tree-line, sometimes passing above it, affording wonderful views of the Leventina, sometimes going below it, ging you a chance to explore the high alpine flora.

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Technical information

Begin of tour:Middle station Alpe di Pesciüm (aerial cable-car from Airolo)
Point of arrival:Train station Rodi-Fiesso
Physical fitness:Intermediate to difficult
Hiking time:6h10
Length:16.5 km
Altitude difference:380 m ascent and 1300 m descent
Season:June through October
Place to eat:Alpe die Pesciüm, Capanna Tremorgio AET, Rodi-Fiesso
Varia:Descending from Lago Tremorgio by aerial cable-car shortens the hike by one hour 50 min.


An aerial cable-car brings you from Airolo to Alpe die Pesciüm. The hike begins at the middle station. The hike runs by several lakes in the Grasso di Lago, Alpe die Ravina, and Alpe di Prato areas. At this last point, look for the sign to Zemblasca. From here, there is a lovely hike in the direction of Ri della Valletta. Begin your ascent to Lago Tremorgio at the Ri Secco. At the end of the mountain ridge, in Brusada, you will have a view onto the entire lake basin. After the hut Capanna Tremorgio AET the trail falls off steeply and goes all the way to the Leventina. Follow the many switchbacks from Lago Tremorgio to Rodi-Fiesso passing through Cassin di Vènn.

Tour Overview

3D hiking map Download GPX coordinates Download KMZ (GoogleEarth)



The careful planning of a tour will ensure that you also derive the maximum pleasure and enjoyment from it. Please take the time to contact the local information centre and enquire about route and weather conditions before setting off. Your intended trail may be fully or partially closed, depending on the time of year and weather conditions.


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