Corbinières Valley and Saint-Just Megaliths Loop

This is classified as a difficult road cycling route, requiring a very good level of fitness. While primarily on well-paved surfaces, be prepared for some segments that might be unpaved or less maintained, especially when traversing the moors near Saint-Just. You might need to dismount and push your bike in certain sections.

The route offers diverse terrain. You'll cycle through the steep, wooded slopes of the Vallée de Corbinières, and across the secluded heath of the Megaliths and Moors of Saint-Just. Expect a mix of well-paved roads and potentially unpaved or gravel sections, especially in the moorland areas.

You'll encounter several notable sights. Highlights include the historic Manoir de la Chapelaine, Pordor Castle, and the ancient Les Demoiselles (menhirs). The challenging Mur de la Corbinieres (800m at 9.8%) is a significant climb, and you'll also enjoy the scenic Canut Valley Road and a Superb siding under the pines.

The route typically starts in Redon. You can find parking in the town center or near the historic areas, which serve as a convenient starting point for this loop.

No, this route is classified as difficult and is not recommended for beginners or families. Its 102-kilometer distance, approximately 900 meters of elevation gain, and potential for mixed-surface sections require a very good level of fitness and experience in road cycling.

The best time to cycle this loop is generally during the spring, summer, or early autumn months when the weather is milder and more predictable. This allows for better enjoyment of the scenic landscapes and ancient sites without the challenges of harsh weather.

As this is primarily a road cycling route, dogs are generally not suitable companions for the full 102-kilometer distance. If you plan to visit specific highlights like the megaliths, check local regulations regarding dogs in those areas.

No, there are no specific permits or entrance fees required to cycle this public road and trail loop. However, if you visit any specific historical sites or attractions along the way, they might have their own entry requirements.

Yes, the route briefly intersects with several other paths. You'll find sections that overlap with the Véloroute de la Rance et de la Vilaine, the Itinéraire vélo VD1 de Ercé-en-Lamée à Sixt-sur-Aff, and the Voie départementale Sainte-Marie de Redon - Saint-Pern, among others.

Given the route's difficulty and potential for mixed surfaces, you should bring a well-maintained racebike, appropriate cycling attire, a helmet, and plenty of water and snacks. Consider carrying a repair kit, spare tubes, and a pump. Due to the length, a GPS device is highly recommended for navigation.

While the route passes through some villages, it's a good idea to carry sufficient water and snacks, especially for the longer stretches between towns. Redon, your likely starting point, offers various cafes and restaurants. For specific stops, plan your route in advance to identify potential refreshment points.