Authion Loop Trail

The ideal time to cycle this route is from June to October. The road is typically closed due to snow from November 30 to April 30, so planning your visit within the summer and early autumn months ensures accessibility and the best conditions.

The loop typically starts from the Col de Turini (1604m), which is a good place to find parking. From there, you'll ascend towards the Authion Massif.

The route is primarily an asphalted road (D68), making it suitable for touring bicycles. While mostly paved, be aware that some sections may have degraded surfaces. It involves significant ascents and descents, with an average gradient of 3.2% and some parts reaching up to 11%.

Yes, cycling is generally prohibited in the heart of the Mercantour National Park. However, the Plateau de l'Authion loop along the RD68 road is an exception. It's crucial to stay on this road. Bike racks are provided along the route if you wish to explore historical sites or viewpoints on foot.

The route is rich in history and offers stunning views. You'll find numerous ruined forts and military vestiges from the 19th and 20th centuries, such as Mille Fourches, Plan Caval, and the Redoute des Trois Communes. Don't miss the Fort de la Forca and the Panoramic view of the Authion. An American tank from 1945 is also on display. From the highest points, you can enjoy 360-degree panoramas, potentially seeing the Côte d'Azur, Provence mountains, and even Corsica on clear days.

While some describe it as suitable for a 'family bike ride,' the route does involve significant climbing, with an elevation gain of around 500 meters for the full loop. It can be considered sporty, and an electrically assisted bicycle is often recommended to make it more accessible for families or those less accustomed to steep ascents.

The komoot tour data suggests a duration of approximately 45 minutes for the 9 km loop. However, the full loop can range from 10-17 km depending on the exact path taken, and with stops for enjoying the views and historical sites, it's best to allow 2-3 hours for a relaxed experience.

As this route is within the Mercantour National Park, specific regulations apply. While cycling on the designated RD68 road is permitted, it's generally advised to keep dogs on a leash and be aware of any specific park rules regarding pets, especially if you venture off the road to explore on foot.

Yes, the route also passes through sections of the Pas des Ladres - Massif de l'Authion, Via Alpina Stage 114: Camp d'Argent - Sospel, and Cime du Diable, among others.

The trail itself is in a natural park setting, so amenities directly on the loop are limited. It's advisable to bring your own water and snacks. For cafes and restaurants, you would typically find options in nearby towns such as Sospel or Breil-sur-Roya, which are accessible from the general area.

There is generally no entrance fee to access the Mercantour National Park. However, as it is a protected area, specific regulations apply regarding activities like cycling (staying on designated roads), camping, and wildlife observation. Always respect the park's rules to preserve its natural beauty.