The GR39 is a long-distance trail that crosses Brittany from north to south, linking Mont Saint-Michel to Hoscas (near Guérande) over nearly 320 kilometers.

This iconic route begins in the heart of the Bay of Mont Saint-Michel and gradually heads inland through Brittany, offering a unique immersion into the region’s diverse landscapes. It features a succession of hedgerow paths, green valleys, forests, canals, and charming villages.