Parc Naturel Régional de Chartreuse

Park in Savoie

Limestone promontories, dense forests and a powerful liqueur are the signature features of this 767-sq-km regional park. The 1300km of marked walking trails are a major incentive to visit, but the namesake liqueur is an even bigger draw. The Caves de la Chartreuse introduce the history of monk-made Chartreuse liqueur (including tastings); 24km east is the Musée de la Grande Chartreuse, delving into the monks' secretive lives.

It’s simplest to have private transport to reach and explore the park.

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