The best means of transport is a car. Start from Biasca and head up the valley. After 20 kms you'll be in Malvaglia. Keep to the right and take the narrow mountain road to Lesgiüna, through Pontironetto, Pontirone, Fontana and Biborgh, at which point the road is no longer surfaced. The dirt road is only accessible to agricultural vehicles. There are three alpeggi on this route.

The first, Alpe Lesgiüna, is well signed and you should reach it after about 50 minutes' brisk walk. From the middle of June this alpeggio is home to a herd of goats and some heifers.

To visit the other two alpeggi, go back to the car park at Biborgh and take the path to Capanna di Cava. After about 3 kms you'll get to the first alpeggio Alpe di Sceng, where they make good sized full-fat formagelle (2 kg each) and ricotta from buttermilk, on sale from the beginning of September. Another 20 minutes climbing and you'll be at the Alpe Cava, set in the middle of a large flat pasture, where about 100 cows graze happily. The same cheesemaker from Valtellina has been making the excellent 'Cava' cheeses - semi-soft, full fat, about 10 kg each. On sale only in the presence of a boggese, co-operative owner of the cows. Buttermilk can be bought any time.

15 minutes from the alpeggio is the Capanna Cava - mountain refuge with 50 beds, open throughout July and August and run by a warden; the surrounding landscape has been sculpted into little hillocks by the passage of a glacier.
It's advisable to go back by the same route.