Belledonne.

The favourite massif of Grenoble's residents, Belledonne is a land of many facets that offers endless exploration. While some of its access points are very popular, the massif paradoxically hides isolated and untamed sectors where rock and stone reign supreme. One even flirts with high-altitude mountaineering at the Grand Pic de Belledonne, which just barely misses the symbolic 3,000-metre mark.