The Tour du Mont-Blanc is one of Europe’s most popular long-distance hiking routes, a 170-kilometre circuit through France, Italy and Switzerland that some 80,000 people walk each year, creating mounting problems.
The Tour du Mont-Blanc is one of Europe’s most popular long-distance hiking routes, a 170-kilometre circuit through France, Italy and Switzerland that some 80,000 people walk each year, creating mounting problems.