Grand Sommartel and Bear Cave Loop

This trail is generally classified as moderate. While a shorter loop focusing on the Bear Cave can be easier, the full loop is more demanding. Be aware that the section through the Pouette Combe (Combe Poëta) can become slippery when wet, so dry conditions are recommended for the best experience.

You'll encounter diverse terrain, including forested paths, streams, and peat bogs. There's a significant ascent of about 160 meters over 1.2 kilometers on an asphalt road, followed by paths through meadows and some stony gravel roads. The path leading to the Bear Cave in the charming Combe Poëta gorge is particularly picturesque.

The most significant feature is the Bear Cave (Grotte de l'Ours), which is a large, impressive rock overhang you can explore. You'll also find the Restaurant Le Petit-Som-Martel offering stunning views, and an observation platform with panoramic views of Les Ponts-de-Martel and the surrounding peatlands.

The trail is generally dog-friendly, but it's always best to keep your dog on a leash, especially in areas with wildlife or near livestock. Be mindful of varied terrain and potential slippery sections.

The trail is best enjoyed in dry conditions, typically from late spring to early autumn. During winter, even a small amount of snow can significantly increase the difficulty, making steeper sections harder to navigate and obscuring trail markings. The Pouette Combe section can be very slippery when wet, so avoid rainy days.

Yes, the route passes by the Restaurant Le Petit-Som-Martel, located at an altitude of 1290m. It's a welcoming stop where you can enjoy regional specialties and breathtaking views of the Alps. There's also a picnic area available near an observation platform.

The trail is a loop starting from Les Ponts-de-Martel. While specific parking lots aren't detailed, you would typically look for parking within Les Ponts-de-Martel to begin your hike. Public transport options might also be available to reach the village.

No, there are no specific permits or entrance fees required to hike this trail. It is freely accessible to the public.

Yes, the route intersects with several other paths. You'll find sections that are part of the La Rochetta - Les Ponts-de-Martel, Jura Bike, and Neuchâtel Bike routes, among others. It also crosses various forest paths like Chemin forestier Le Plan-Calame and Chemin forestier Le Petit Sommartel.

You can look forward to beautiful natural scenery, including forests, streams, and peat bogs. There are sections offering views of the Creux du Van and the valley. An observation platform provides panoramic views of Les Ponts-de-Martel, and the Restaurant Le Petit-Som-Martel offers stunning vistas of the Alps.

While the full loop is classified as moderate and might be challenging for very young children, a shorter, easier loop focusing on the Bear Cave is often considered suitable for all skill levels. The varied terrain and natural features like the cave and explanatory panels can be engaging for children.