4.4
(790)
43,803
runners
783
runs
Jogging routes around Réserve naturelle des Isles du Drac traverse a diverse mosaic of natural environments, shaped by the Drac River and its alluvial plains. The region features extensive alluvial forests, wetlands, and dry terraces, providing varied terrain for runners. This regional natural reserve, located near the Grenoble metropolitan area, offers a tranquil setting for outdoor activities.
Last updated: August 25, 2026
232
runners
10.7km
01:12
90m
90m
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
97
runners
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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4.0
(1)
24
runners
12.6km
01:40
390m
390m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
156
runners
8.51km
00:55
50m
50m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.5
(2)
145
runners
8.71km
01:09
330m
330m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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A lovely panorama of the Drac Islands nature reserve
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The Pissarde or Allières waterfall is an 80-meter waterfall located in the department of Isère.
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The Pont de Claix or Pont Lesdiguières was built between 1608 and 1611 on the Drac, at the request of market gardeners from the fertile plains of Claix who at the time needed to cross the Drac to sell their products in Grenoble.
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This point of view offers you a unique panorama over the Vercors.
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Access is very easy from the Château des Allieres. Ideal for a Sunday stroll with the family
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Very pretty waterfall with its basin of limpid water
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The Claix bridge, which was built between 1608 and 1611 under the leadership of Constable Lesdiguières, allowed the easy crossing of the Drac and regular communication between Grenoble and close campaigns. Still looking medieval with its donkey road, its only arch with a range of 46 meters and 16m high, represented at the time a real technical feat. The bridge was at the time two inscriptions: "UNUS DISTANCIA JUNGO" (Unique by my length, I gathered) and "ROMANA MOLES PUDORE SUFFUNDO" (I make shame Roman buildings). It is classified historic monument in 1898.
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There are over 740 running routes available in the Réserve naturelle des Isles du Drac, catering to various fitness levels and preferences. This includes 37 easy routes, 268 moderate routes, and 442 difficult routes.
The Réserve naturelle des Isles du Drac offers a diverse mosaic of natural environments. You can expect trails that follow the dynamic Drac riverbed with gravel banks, wind through tranquil alluvial forests, and cross open dry terraces. This variety provides an engaging experience for runners.
Yes, the reserve features 37 easy running routes, making it suitable for beginners or those looking for a more relaxed jog. Many trails within the reserve have minimal elevation change, such as the accessible sectors like Chasse Barbier and Promenade Thiervoz, which are known for their gentle terrain.
Absolutely. Many of the running routes in the Réserve naturelle des Isles du Drac are circular, allowing you to start and finish at the same point. For example, the Running loop from Le Pont-de-Claix is a moderate 5.6 km circular path, perfect for a varied run.
While jogging, you'll experience the lively Drac River with its gravel banks and old river arms, extensive alluvial forests, and wetlands. The Running loop from Pont-de-Claix follows the dynamic riverbed, offering scenic views. You might also encounter educational markers and observation pontoons along the Chasse Barbier interpretive trail, designed to highlight the site's rich biodiversity.
Yes, the reserve can be suitable for family jogging, especially on its easier and flatter sections. The Chasse Barbier interpretive trail, for instance, is a 2.8 km path equipped with educational markers, making it an engaging and accessible option for families to enjoy nature while running or walking.
Public access within the Réserve naturelle des Isles du Drac is regulated to protect its sensitive ecosystems. Visitors are encouraged to stay on designated paths. While specific dog policies can vary, generally, dogs are permitted on trails if kept on a leash. It's always best to check local signage for any specific restrictions.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 700 reviews. Runners often praise the tranquility and natural immersion offered by the reserve, highlighting the peaceful escape it provides just a few kilometers from Grenoble. The diverse landscapes, from riverbanks to shaded forests, are also frequently mentioned.
Yes, some routes provide glimpses of the wider landscape. The View of the Vercors loop from Saint-Georges-de-Commiers is a 12.6 km trail that leads through varied landscapes, offering opportunities to appreciate the scenic surroundings, including views towards the Vercors massif.
The Réserve naturelle des Isles du Drac is a significant biodiversity reservoir, home to 482 animal species. While jogging, especially during quieter times like early morning or late evening, you might spot roe deer, foxes, and various bird species like herons. The reserve is also home to emblematic species such as the European Nightjar and European Beaver.
Among the featured routes, the Running loop from Pont-de-Claix is one of the longer options, covering 12.7 km. This challenging route follows the dynamic Drac riverbed and typically takes about 1 hour 24 minutes to complete.
Yes, the reserve features extensive alluvial forests that provide natural shade, making them ideal for running on warmer days. The Monk's Leap – Superb forest trail loop from Grenoble, for example, winds through dense alluvial forests, offering a shaded and natural setting for your run.


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