The GR 52, the emblematic route of the Vallée des Merveilles
A truly legendary route in the Alpes-Maritimes, the GR 52 crosses some of the most spectacular landscapes in the Mercantour. Between glacial lakes, high-altitude passes, mountain refuges and rocky chaos, this emblematic trail immerses hikers in an intense alpine experience, on the border between wild nature and ancient heritage.
The GR 52 is particularly famous for its passage through the famous Vallée des Merveilles, one of the largest rock carving sites in Europe. Here, more than 40,000 engravings dating back to the Bronze Age appear amidst mineral landscapes sculpted by glaciers, in an almost unreal atmosphere.
Every year, this unique experience of hiking the Valle delle Merveilles attracts mountain, roaming and wide open spaces enthusiasts. From Castérino or the Roya valley, there are several options for exploring the site by the day or over several stages, with panoramic views of the Mercantour peaks and the Southern Alps.
Along the way, the GR 52 criss-crosses a lively, unspoilt mountain landscape: larch forests, high mountain streams, hanging lakes and wild fauna accompany walkers in an area where silence and nature take centre stage.

Mountain Panorama


