9
hikers
Grand Sommartel Loop
02:15
7.60km
220m
Hiking
Hike the moderate 4.7-mile Grand Sommartel loop from La Combe-Jeanneret, offering diverse terrain and scenic Jura Mountain views.
Last updated: February 26, 2026
Waypoints
Start point
Bus stop
Get Directions
2.68 km
Auberge du Grand-Sommartel
Highlight • Restaurant
Translated by Google •
Tip by
3.53 km
Le Grand Sommartel
Highlight • Summit
Translated by Google •
Tip by
7.60 km
End point
Bus stop
Way Types & Surfaces
Way Types
3.35 km
2.06 km
1.17 km
1.02 km
Surfaces
3.27 km
1.67 km
1.45 km
657 m
555 m
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Elevation
Highest point (1,310 m)
Lowest point (1,100 m)
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Weather
Powered by Foreca
Saturday 16 May
11°C
-2°C
6 %
Additional weather tips
Max wind speed: 8.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
How long does it typically take to hike this loop?
The Grand Sommartel loop from La Combe-Jeanneret is designed to be completed in approximately 2 hours and 15 minutes, making it a great option for a half-day outing.
What is the difficulty level of the trail?
This trail is generally considered to be of moderate difficulty, or easy to medium. Some sections are quite accessible with little incline, making it suitable for a range of hikers, including families.
What kind of terrain can I expect on the Grand Sommartel loop?
You'll encounter diverse terrain, including stony paths, narrow forest paths with roots and stones, and open pastures. Some parts also traverse through green meadows. Be mindful on descents, especially if conditions are wet.
Where can I park to access the trailhead?
The loop starts from La Combe-Jeanneret. You can find parking available there, which serves as a convenient starting point for the trail.
Are there any notable points of interest along the route?
Yes, a key highlight is the Auberge du Grand-Sommartel, a family-run inn offering regional dishes and homemade treats. You can also enjoy views towards Le Locle and the Sagne valley, and pass by Le Grand Sommartel summit.
Is the trail dog-friendly?
Yes, the trail is generally dog-friendly. However, as you may pass through pastures with livestock, it's advisable to keep your dog on a leash, especially near correctly adapted barriers and 'bovi-stops'.
Do I need a permit or have to pay an entrance fee?
No, there are no permits or entrance fees required to hike the Grand Sommartel loop from La Combe-Jeanneret.
What is the best time of year to hike this trail?
The trail is enjoyable in spring, summer, and autumn. Spring and summer offer lush green meadows, while autumn brings beautiful foliage. Be aware that descents can be slippery in wet conditions, so check the weather before you go.
Does this trail connect with other hiking or biking routes?
Yes, the route intersects with several other paths. You'll find sections that are part of the Jura Bike and Neuchâtel Bike routes, as well as smaller portions of the La Rochetta - Les Ponts-de-Martel, chemin forestier Petit Som Martel, Chemin forestier Le Petit Sommartel, and Chemin des Noisetiers trails.
Are there places to eat or drink along the way?
Yes, the Auberge du Grand-Sommartel is a great spot for regional dishes and pastries with a terrace. Note that it is closed on Mondays and Tuesdays. The Auberge du Petit-Sommartel is also along the route and is closed on Wednesdays, so plan your visit accordingly if you wish to stop for refreshments.
Can I extend my hike beyond the main loop?
Absolutely! You have the option to extend your journey to Petite Joux or Grande Joux. Public transport is available from Grande Joux for a return to Le Locle, offering flexibility for longer excursions.