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Getting There & Away

Transisère (www.transisere.fr) runs irregular buses between Grenoble and St-Pierre-de-Chartreuse (line 7000, €5.60, 1¼ hours) and between Chambéry and Voiron (line 7010, €5.60, 1½ hours).

Private transport is the easiest way to reach, and explore, the regional park. In winter, some roads within the park may require snow tyres.