The Cascades du Hérisson gorge trail follows the River Hérisson through a deep limestone canyon south of Clairvaux-les-Lacs in the Jura department of Bourgogne-Franche-Comté, linking a sequence of fourteen waterfalls over a 7km return route between the Moulin Jacquand car park and the Saut Girard — the tallest cascade on the trail at approximately 60m. The route is managed within the Haut-Jura Natural Regional Park and is one of the most visited natural sites in the former Franche-Comté region.
The trailhead is the Parking du Moulin Jacquand on the Route des Cascades in Ménétrux-en-Joux (39130), 35km from Lons-le-Saunier via the D127. No public transport serves the trailhead; a private vehicle or rental car is required. Parking is free. No permit is required.
The 7km return route climbs 280m to the Saut Girard and back, taking 3 to 4 hours at a comfortable pace. Trail surfaces are a mix of compacted gravel, rocky stone steps, and wooden boardwalk bridges crossing the river at several points. Conditions near the falls are permanently wet and non-slip footwear is essential throughout. The narrow gorge walls provide shade through most of the morning. No water on the trail is potable; walkers should carry their own supply.
Principal landmarks on the ascent include the Saut du Moulin near the start, the turquoise Gour Bleu plunge pool, the Saut de la Forge, the Saut du Château Garnier, and finally the Saut Girard at the head of the gorge. A plateau loop return of approximately 10km total is possible via the upper Hérisson valley and the village of Ilay, adding around 45 minutes but delivering open plateau views.
A seasonal café operates at the Moulin Jacquand car park from April to September; no facilities exist on the trail itself. The waterfalls are at their most dramatic from April to June when Jura snowmelt maximises flow through the canyon. July and August see the highest visitor numbers. An early-morning start before 09:00 is recommended on summer weekends to avoid the largest organised tour groups.
Trail facts
- Trail area
- Near Clairvaux-les-Lacs, Jura
- Best season
- April–June (peak water flow from snowmelt); July–September (accessible and warm)
What to bring
Non-slip walking shoes or boots (paths are wet and rocky near falls), waterproof jacket, trekking poles recommended
Location
Parking Le Moulin Jacquand, Route des Cascades, 39130 Ménétrux-en-Joux
46.6944, 5.8231 View on map
Highlights
- Fourteen waterfalls through a dramatic limestone gorge, including the 60m Saut Girard at the head of the canyon
- Turquoise Gour Bleu plunge pool — one of the most photographed natural features in the Jura department
- Peak spring flow in April–May when Jura snowmelt fills the Hérisson to its maximum volume
- Shaded gorge path with wooden bridges and boardwalks crossing the river at multiple points
- Optional 10km plateau return via Ilay for open views beyond the gorge itself
Tips for visiting
- Non-slip boots are essential — paths are permanently wet and rocky beside the falls throughout the year
- Visit April–June for peak waterfall volume; avoid August holiday weekends when the gorge becomes very crowded
- Carry water for the full 3–4 hour return — no drinking water source exists on the trail itself
- The gorge path is not suitable for pushchairs; leave strollers at the Moulin Jacquand car park
- An early-morning start before 09:00 avoids the largest organised coach parties on summer weekends
When to visit
April and May are optimal for peak waterfall volume due to snowmelt; July and August are warmest but see the largest crowds. Morning visits year-round are recommended to beat organised tour groups at the main falls.
Accessibility
Not suitable for wheelchairs or strollers. The gorge path is narrow, rocky, and permanently wet, with wooden steps and bridges requiring sure footing throughout. No accessible sections exist on this trail.
Frequently asked questions
Is the Cascades du Hérisson trail suitable for children?
The lower gorge section up to the Gour Bleu is manageable for older children (8+) with close adult supervision. Paths near the upper falls are narrow and slippery and require extra caution. Pushchairs cannot be used on any section of the trail.
Is there an entrance fee?
Access to the gorge trail is free. Parking at Moulin Jacquand is also free. The optional tourist boat on nearby Lac Chalain charges a separate fee and is unrelated to the waterfall trail.
When is the best time to see maximum waterfall volume?
April and May offer the highest flow thanks to Jura snowmelt draining into the Hérisson. Summer flows are lower but the falls remain impressive. The trail is accessible year-round except in severe frost when upper paths become dangerously icy.
Can the return be made via a different route?
A plateau return loop of approximately 10km total is possible via the upper Hérisson valley and the village of Ilay, adding around 45 minutes and delivering open plateau views not visible from within the gorge.