You start at the Giessbach waterfalls and with no altitude differences to speak of, a wide gravel path leads through the forest to the Unterholz fork and on to two agricultural clearings (Kusterboden and Hohflue) before re-entering the forest. At the next junction on the path, matter-of-factly signposted «700 m», there are two hiking routes to choose from, both heading towards Iseltwald. The shorter option slopes gently down to another branch after a few hundred metres, where the Farnihubel is also signposted.
A narrow path winds through an increasingly wild and rocky landscape. Passing rock faces – some of which are vertical, some of which overhang – you enter a mesmerising world. Various species of fern grow between the trees, which partly explains the name of the region. Although the terrain is distinctly rugged, hikers are in no danger as long as they stay on the path. There are two benches at the very end of the path where hikers can drink in the views as far as Iseltwald and Schnäggeninseli island.
You leave the maze-like Farnihubel by the same route you came. After this, you come to the only climb worthy of the name on the tour, which leads up from the aforementioned «700 m» fork in the direction of Isch. Thereafter much of the walk is over open terrain, guiding hikers through a patchwork of beautifully maintained, cultivated landscapes – one of which is the Louberli farm. The final gem on the route is the Mülibach waterfall, where the waters gush into a round pool from a vertical rock face. After the waterfall, you descend through the forest to the motorway and reach the village of Iseltwald.