GR 121 ‘de la Manche à l'Escaut’ (Channel to Scheldt)

Trail markings: red-white

Along the water...200 km across the Pas-de-Calais from Oisy-le-Verger to Equihen-Plage.This was the first Grande Randonnée route to be created in the Pas-de-Calais.It crosses the département from the Sensée ponds via Arras, then enters the Canche valley with its many villages to join the hills of the Boulonnais region as far as the English Channel.10 stages throughout the Pas-de-Calais region, with its many riches: Stage 1 (17.7 km): from Equihen-Plage to Halinghem Things to see along the way: Hardelot castle, the Condettes ponds nature reserve and the Escault dunes (ENS) and the Glaisière de Nesles (ENS).  Stage 2 (16.9 km): Verlincthun - Maresville Alternating between agricultural plateaux and the proximity of watercourses...Stage 3 (15.9 km): Maresville to Montreuil-sur-MerSmall rural heritage, canals and streams ...Stage 4 (20km): from Montreuil-sur-Mer to BeaurainvilleThe citadel of Montreuil-sur-Mer, the Charterhouse of Neuville-sous-Montreuil, the marshes and the village of Aix-en-Issart...Stage 5 (16.4 km): Beaurainville to GrignyThe Beaurainville marshes, the Hesdin national forest and near the River Canche…Stage 6 (13.1 km): from Grigny to FillièvresMills along the canche, the Grigny marsh and small rural heritage...Stage 7 (28 km): from Fillièvres to DenierHeritage villages from Conchy-sur-Canche to Boubers-sur-Canche...Stage 8 (29 km): from Denier to ArrasA small rural heritage, the Gy, the castles of the Campagnes de l'Artois, and Arras, a town steeped in history...Stage 9 (21, 3 km): from Arras to Boiry-Notre-DameThe marshes of Feuchy, the Caribou at Monchy-le-Preux ...Stage 10 (18, 8 km): from Boiry-Notre- Dame to Oisy-le-Vergerthe marshes of the Sensée, the megaliths: the Sept Bonnettes ...A route along the water between ponds, marshes, canals and rivers...