With its 1,500 km of marked trails, this Nature Park, located 1h30 from Lyon, is quite simply considered one of the most beautiful massifs in France and one of the most secret in the Alps.
All too often, its name is reduced to that little glass shared after a good meal. Quite the contrary! Before becoming the most famous green bottle on the planet, the Chartreuse is first and foremost a mountain range tha...