Mont Viroulet and Col de la Séréna Loop

This is a difficult mountain bike ride, best suited for advanced riders with excellent physical conditioning. It corresponds to a Single Track Scale (STS) difficulty level of S3-S6, meaning you should be prepared for highly technical sections where you might need to dismount and push your bike.

The 21.2-kilometer loop features varied terrain, including significant elevation changes. You'll ascend through the shaded Lauzetta forest towards the Col de la Séréna (1,307 m). The descent from the Col de la Madeleine is particularly technical, with singletrack and challenging hairpin bends that become rougher towards the bottom. Expect a mix of dense woodland and rugged mountain ridges characteristic of the Mercantour National Park.

Along the way, you'll encounter several notable spots. These include the Col de la Séréna (1,307 m), the Mont Viroulet summit, and a fantastic View of Valdeblore. The entire route is set within the stunning natural backdrop of the Mercantour National Park.

Given its high-altitude alpine setting and technical nature, the best time to ride this trail is typically from late spring to early autumn (June to September), when the snow has melted and weather conditions are more stable. Always check local weather forecasts before heading out.

Yes, as this trail is within the Mercantour National Park, specific regulations apply to protect the natural environment. While there isn't typically an entrance fee, mountain biking is generally restricted to designated trails. Always check the official Mercantour National Park website for the most current rules regarding authorized cycling paths and any specific permits that might be required for certain activities or areas.

Mercantour National Park has strict regulations regarding dogs to protect its wildlife. Generally, dogs are not permitted, even on a leash, on trails within the central zone of the park. It's crucial to verify the specific rules for this particular route on the official Mercantour National Park website before planning your ride with a dog.

This challenging 21.2 km loop typically takes around 3 hours and 26 minutes to complete. However, given its difficult rating and significant elevation gain, actual times can vary widely depending on your fitness level, technical skills, and how often you stop to enjoy the views.

Specific parking information for this exact trailhead isn't provided, but trails in Mercantour National Park often have designated parking areas near popular access points. It's recommended to check local maps or the official Mercantour National Park resources for the most accurate parking locations near the start of the loop, likely in the vicinity of Valdeblore.

Yes, the route does intersect with sections of other paths. You'll find it passes through parts of the Piste de la Clamia, Chemin d'Ullion, and Lou Girou en Tinée, among others.

The Mercantour National Park is rich in biodiversity. While mountain biking, you might spot various alpine animals such as chamois, ibex, marmots, and different bird species. Remember to maintain a respectful distance and avoid disturbing their natural habitat.

Given the trail's difficulty and length, you should bring plenty of water, energy snacks, a repair kit for your bike, a first-aid kit, and appropriate clothing layers for changing mountain weather. A helmet, gloves, and protective gear are essential. A GPS device or a fully charged phone with offline maps is also highly recommended.