This challenging segment leads from Aldein via the Cislon to Gschnon and on to Gfrill. You will proceed along pleasant trails and come first to Holen, then past it to the Aldein Bridge (known as the "Little European Bridge" when first built in the 1960s). Here there are various refreshment options. And provided that you have the necessary physical fitness, you can then continue on upwards to the Cisloner Alm. A quite challenging part of the trail is over the Reiterböden. Later, you will proceed to Mühlen (option for rest-stop, refreshments, and overnight lodgings). You can then continue over a short stretch over an asphalt road and uphill to the hamlet of Gschnon (option for rest-stop, food/drink, and overnight lodgings). After that, there's a somewhat more-comfortable segment over pleasant forest paths and the Gfrill Saddle until you come to Gfrill.
Derived from the technical difficulty and the stamina requirements.