The GR34, also known as the "Sentier des Douaniers," is a long-distance hiking trail located along the coast of Brittany, France. Stretching approximately 2,000 kilometers, it offers stunning views of cliffs, beaches, and coastal landscapes. The trail is popular among hikers and nature enthusiasts, providing access to various natural and cultural sites. The GR34 is part of the Grande Randonnée network, which includes numerous hiking paths across France. It is well-marked and accessible, making it suitable for hikers of all skill levels. Along the route, visitors can explore charming coastal towns and experience the rich maritime heritage of the region.