Wild 70 links Kandersteg with Crans-Montana. The official course is 72 km with 4,600 m D+; GPX analysis gives 70.4 km and roughly 4,355 m D+. The route is a Swiss alpine mix of steep passes, runnable panoramic trails, technical mountain paths and the exposed finish through Bisse du Ro.

Course character
Wild 70 is not continuous rough skyrunning, but it is clearly alpine. The first climb to Bunderschrinde arrives almost without a warm-up, then Adelboden, Sillerebüel and Hahnenmoos bring more rhythm changes and more runnable sections. The race day is decided after Lenk: Iffigenalp, Cabane Wildstrubel, Rawil and the long way to Tseuzier combine altitude, exposure and fatigue.
Four acts, not one even line
It helps to read Wild 70 as four distinct acts rather than a simple 70 km connection.
- Kandersteg and the early alpine test. From the start the course climbs directly to Bunderschrinde. This is the first filter and not a good place to chase your start wave.
- Adelboden, Sillerebüel and Hahnenmoos. This middle part feels more runnably Swiss, but it keeps changing: wider tracks, slopes, pasture crossings and technical trail sections alternate.
- Lenk to Cabane Wildstrubel. The main high-alpine block climbs via Iffigenalp into the highest part of the race. Wind, fog, snowfields and slower movement are realistic planning factors here.
- Rawil, Tseuzier and Bisse du Ro. After the high point the course is not finished. The long descent, the reservoir and the exposed Bisse du Ro section demand focus when the legs are already heavy.

Key climbs and descents
Read from the official checkpoint data, the load is not spread evenly. The steepest block comes after Iffigenalp, exactly when more than 40 km are already in the legs:
- Kandersteg → Bunderschrindekm 0–10.7+1214 m113 m/km
- Adelboden → Sillerebüelkm 18.1–27.3+959 m104 m/km
- Lenk → Iffigenalpkm 36–44.4+561 m67 m/km
- Iffigenalp → Cabane Wildstrubelsteepestkm 44.4–50.1+1224 m215 m/km
The hardest mental descent starts after the Rawil sector. On paper the course loses a lot of height towards Tseuzier, but in practice descent, traverse and technical passages keep alternating. That is why the finish after Barrage de Tseuzier is not a cooldown, but one last concentration test.
Terrain and surface
The course mixes alpine mountain paths, meadows and pasture crossings, gravel, steep descents and exposed traverses. Bunderschrinde is the first clear alpine marker: a steep climb followed by a loose gravel descent that needs sure footing rather than speed. The Iffigenalp to Cabane Wildstrubel block is the second, with stony high terrain and exposed sections along the mountainside. Bisse du Ro adds a spectacular but focus-heavy finish, a path cut into the rock with a long suspension bridge of around 120 m, where tired legs and exposure meet.



