GR52

GR52. The GR52 is a long-distance hiking trail, or *Grande Randonnée*, located in the southeastern corner of France. It traverses the rugged high-alpine terrain of the Alpes-Maritimes department within the Provence-Alpes-Côte d'Azur region. The route is renowned for its passage through the heart of the protected Mercantour National Park and its access to the famed prehistoric rock art site of the Vallée des Merveilles.

Overview

The GR52 is classified as a challenging high-mountain itinerary, demanding good physical condition and experience in alpine environments. It forms a key pedestrian route through the southern part of the Alps, connecting the Mediterranean-influenced valleys with the high peaks bordering Italy. The trail is managed and waymarked by the French Federation of Hiking, which maintains the extensive network of *Grandes Randonnées* across France. Hikers typically undertake the route between late June and September to avoid persistent snow cover on its highest passes.

Route description

The classic itinerary of the GR52 often begins in the town of Saint-Dalmas-de-Tende, ascending into the remote Vallée de la Roya. It then climbs steeply to cross several significant cols, including the Pas de Mont Colomb and the Baisse de Valmasque, offering dramatic vistas of peaks like Mont Bégo. The core section winds through the Vallée des Merveilles and the Vallée de Fontanalba, areas administered by Mercantour National Park. The descent typically leads south through the Vallée du Boréon before concluding in the popular mountain village of Saint-Martin-Vésubie, gateway to the Parc National du Mercantour.

History and development

The trail's establishment is intrinsically linked to the creation and promotion of Mercantour National Park, which was officially designated in 1979. The path was developed to provide access to the park's interior while minimizing environmental impact, following the ethos of the French Federation of Hiking. Its alignment passes near the Fort de la Forca, a reminder of the region's strategic military history along the Alpine front. The route also facilitates access to the archaeological zones studied by pioneers like Claude Salicis, who documented the thousands of Bronze Age petroglyphs in the Vallée des Merveilles.

Landmarks and points of interest

The premier cultural attraction along the GR52 is the Vallée des Merveilles, within the Massif du Mercantour, known for its vast assemblage of ancient rock engravings. Notable natural landmarks include the Lac des Mesches, the Lac du Basto, and the towering summit of Grand Capelet. Hikers pass refuges like the Refuge de la Valmasque and the Refuge des Merveilles, operated by the Club Alpin Français. The trail also offers proximity to the Jardin botanique alpin du Lautaret and views extending toward the Mediterranean Sea and the Principality of Monaco.

Connections to other trails

The GR52 directly interlinks with several other major trails, enhancing its role in the regional hiking network. At its northern end, it connects with the GR5, one of Europe's great trans-alpine routes that runs from the North Sea to the Mediterranean Sea. It also meets the GR52A, a variant loop that explores the Vallée de la Minière. Furthermore, the trail provides access points to the extensive network of paths within Mercantour National Park, and its southern terminus near Saint-Martin-Vésubie links to trails leading into the Parc National du Mercantour and towards Nice.

Category:Hiking trails in France Category:Alpes-Maritimes Category:Grande Randonnée