The most direct route is through the valleys
The Via Alpina meanders north along the ridge of the Alps from Vaduz to Lake Geneva, crossing many Swiss Alpine valleys and historic pass routes that not even off-road vehicles can use.
The Via Alpina takes the most direct route from Kandersteg to Adelboden - almost as the crow flies. The official SwitzerlandMobility route over the Bunderchrinde leads up to the pretty Üschenetäli, then steep, exhausting and over several steep steps up to the transition to Adelboden. The notch on the horizon is striking, as if a giant had made a dent in the ridge. This path via Usser Üschene is scenically charming - the one with the aerial cableway via Allmenalp, on the other hand, is much less strenuous.
The small aerial cableway is not least known for the Kandersteg via ferrata on the Allmenfluh, a 350 metre high wall divided by pillars and gorges, over which the Allmibach with its four waterfalls plunges. The most spectacular passage of the via ferrata is the twisted ladder at the roof overhang. The route is not suitable for anxious beginners, but there are always sections where you can catch your breath and look at the Lötschberger trains far below.
The mountain path to Bunderchrinde then leads from Allmenalp past Chlyne Lohner to the Alpschelengrat with its panoramic views and from there to the incision. When the weather is fine you can see the Balmhorn, the Blüemlisalp and the Eiger. It is exciting for multi-day hikers to look back to Hohtürli, where yesterday began.
Via Bonderalp and Bonderlen you reach the village of Adelboden. The Via Alpina continues over the Hahnenmoos Pass to Lenk and over the Trütlisberg Pass to Gstaad.
Lötschberger from Bern to Kandersteg, from Adelboden bus back to Frutigen.
Kandersteg - Leukerbad, crossing of the Bernese Alps over the Gemmi Pass, with overnight stay at the Hotel Wildstrubel on the Gemmi.