Practical info
Everything you need to know to prepare your Les Fous de Chamrousse challenge.
Water points
Every known drinking water point within 250 m of the three climbs. Click a marker for details and directions.
17 drinking water points listed along the challenge routes.
Data updated on July 11, 2026 · Source: © OpenStreetMap contributors (ODbL)
Always keep a margin
These water points come from OpenStreetMap and only those marked as potable are shown. A fountain can still be turned off (especially in winter or during a drought): always set off with at least two full bottles and, when in doubt on site, don't drink. Spotted a missing or incorrect point? Contribute on OpenStreetMap to help the next Fous!
Climb by climb
See where to refill your bottles on each ascent, from start to summit. Click a point to view it on the map.