Where is Col du Sanetsch?
Switzerland, europe
25.9 km
2,250 m
extreme
Year-round
Col du Sanetsch: Prepare for breathtaking views and a thrilling ride up to 2,250m (7,381ft) in the Swiss Alps! You'll find this hidden gem in the canton of Valais, nestled at the foot of the Tzanfleuron Glacier.
This fully paved road, also called Route du Sanetsch, kicks off with a steep climb through vineyards before plunging you into a lush, waterfall-filled forest. But the real adventure begins with an 800m tunnel – pitch black, damp, and barely lit, but with occasional openings offering incredible views (or a place to dodge oncoming traffic!).
Starting from Conthey, the 25.9 km (16.09 miles) Route du Sanetsch is not for the faint of heart! It’s known for being the most demanding climb in Valais, with sections hitting a brutal 14.5% gradient. Think of it as Switzerland's answer to some crazy-steep climb.
Open only from June to September, the drive itself takes about 45-60 minutes. You'll pass the stunning Lac de Sanetsch (or Lac de Sénin) along the way, a man-made lake created during the road's construction. Once you reach the summit, park your car and brace yourself – the wind can be fierce! The reward? Panoramic views, including the majestic Diableret glacier.
Road Details
- Country
- Switzerland
- Continent
- europe
- Length
- 25.9 km
- Max Elevation
- 2,250 m
- Difficulty
- extreme
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