The banks of the Thur and Old Thur rivers in the potash region

For a long time, the Thur was used as a dumping ground for the dye works in the Thann-Cernay valley and beyond, as far as Ensisheim, for chlorides from the potash mines.
Today, these industries have disappeared, which is regrettable, but the polluted ditch has regained its wild beauty and the trout have returned. Starting from the Ensisheim Pond, this route offers a tour of the river, its tributary the Old Thur and its forest, the Thurwald.

Please note: Japaneseknotweed invades the banks of the Thur every year, obstructing the view of the river between May and November.
It is best to do this hike between November and early May.

Details

2756026
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 10.01 km
  • ◔
    Average duration: 2h 55 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 13 m
  • ↘
    Descent: - 13 m

  • ▲
    Highest point: 230 m
  • ▼
    Lowest point: 214 m
  • ⚐ Country: France
  • ⚐ District: Ensisheim (68190)
  • ⚑
    Start/End: N 47.86459° / E 7.34117°
  • ❏
    IGN map(s): Ref. 3719OT, 3719OTR, 3720ET
  • Hour-by-hour weather

Photos

Description of the walk

Parking near the "Les Oréades" nursery school on Rue de Castroville in Ensisheim.

A longer route is available with the hike Along the banks of the Ill, Thur and Old Thur rivers.

(S/E) Head towards the roundabout, turn right along the school towards the gravel pit pond. Turn left onto the cycle path (part of the Ensisheim-Thann stage of the Way of St James, marked Chevalet Vert) along the south-east bank of the pond.
At the end, turn right onto the embankment along the western bank and reach the right bank of the Thur.

(1) Follow the Thur upstream to the left. Enjoy the peaceful setting between the river and the forest that bears its name (Thurwald). Pass a ford on the right; further on, the path leaves the forest.

(2) Continue straight ahead along a field for about 200 m. Turn right into the forest to reach the bank and then, a little further upstream, a pretty footbridge over the river. Cross it and leave the Camino de Santiago.

(3) There are two options:

- short version: take the shortcut on the right (marked with a green disc) downstream to quickly reach the two ponds (7), the preferred option if the weather has been very wet - see Practical Information;

- Long version, the option chosen on the map and in this description: turn left upstream (green disc markings). After about 400 m, leave a path on the right and continue to the next crossroads.

Yellow ring markings.

(4) Leave the riverbank by turning right towards the Parc du Petit Prince. After crossing a field, enter the forest. The path quickly reaches the Vieille Thur; after the bridge, turn right. The path heads north again, leaves the forest and passes a sandstone cross engraved with a hand and the year 1611. 100 m after the cross, you will reach a crossroads before the Feldbach stream.

(5) Continue for a few dozen metres and, after a quick look at the Parc du Petit Prince, return to the crossroads.

(5) Leave the yellow ring trail and take the path heading south-east into the Espenwald forest. Continue in this direction until you reach the Vieille Thur streamagain. A grassy path branches off to the left just after the small bridge.

(6) There are two options:

- If the path is too overgrown, continue straight ahead, leave the forest and return to the banks of the Thur. Follow it to the left (Green Disc markings), leave the footbridge and continue to the ponds and point (7).

- Option chosen on the map and in the description: take this little-used path (not shown on the map) on the right bank of the Vieille Thur. Ignore a path branching off to the left (it leads to the riverbank). Further on, the path moves away from the bank in a south-easterly direction, meets a ditch (the former course of the Vielle Thur) and then heads north-east, approaching the Thur, whose rapids can be heard. When you reach a wide path, turn right at the crossroads between two ponds.

(7) A short return trip upstream along the bank of the Thur allows you to enjoy the rapids and the ponds (dead arms of the Thur). Leave the bank, ignore the green disc markings along the bank, and return to the crossroads by passing between the ponds. See the alternative route in Practical Information.

(7) At the crossroads, the green disc marker on the tree opposite is partially hidden by a white label. Head north-east towards Ensisheim. Keep going in this direction. The path approaches the right bank of the Vieille-Thur and meets a wide forest path near a bridge.

(8) Cross the forest path, leave the green disc markings and head along the right bank on a wide path marked with blue triangles. Further on, it moves away from the river along the edge of a field. Shortly after a "private forest path" sign and an old stone marker, the path turns left. At this bend, a wide grassy path branches off to the right.

(9) Leave the forest track and the Blue Triangle markings. Turn right into the forest and after a few hundred metres you will reach the embankment that runs along the left bank of the Thur. Continue straight ahead. At the end, leave the track and continue to the left. Go down the dyke.

(10) Turn left onto the path that leads to a wide track, then turn right to reach the D4b. Follow the road to the right, cross the road bridge and stay on the right-hand pavement to take the cycle path on the right.

(11) Continue between the houses and the old renaturalised slag heap. Turn right before reaching the street. After about 100 metres, leave the track and take a small path on the left which runs alongside the school fence and leads to Rue de Castroville (S/E).

Waypoints

  1. S/E : km 0 - alt. 217 m - Les Oréades School
  2. 1 : km 1.57 - alt. 220 m - Right bank - La Thur
  3. 2 : km 3.34 - alt. 225 m - Forest exit
  4. 3 : km 3.8 - alt. 228 m - Footbridge over the Thur
  5. 4 : km 4.41 - alt. 230 m - Yellow Ring Markings
  6. 5 : km 5.36 - alt. 226 m - Parc du Petit Prince
  7. 6 : km 5.85 - alt. 226 m - Bridge over the Old Thur
  8. 7 : km 6.63 - alt. 223 m - Crossroads between the ponds
  9. 8 : km 6.94 - alt. 225 m - Crossroads - La Vieille Thur
  10. 9 : km 7.64 - alt. 220 m - On the right in the forest
  11. 10 : km 9.18 - alt. 216 m - End of the hill
  12. 11 : km 9.54 - alt. 219 m - Cycle path
  13. S/E : km 10.01 - alt. 217 m - Car park

Notes

Important: in wet weather, the paths and trails can be very muddy and, if the season has been very rainy, some trails may be overgrown with vegetation from (6) onwards. In this case, it is better to take the short version, going from (3) to (7) downstream on the left bank of the Thur.

(7) Alternative: you can continue along the left bank of the Thur on the wide path marked with green discs. Further on, at the crossroads before the ford, turn left and join the Vieille Thur at point (8).

(6) The Vieille-Thur follows the old course of the Thur. Officially, its water is diverted from the Thur at the footbridge at point (3) for the irrigation needs of the potash mines.
This can still be seen on the OSM map and on site by the remains of the structures.
Today, the water comes from a diversion of the Thur upstream near Chalet Grien (as shown on IGN or Google Maps). It also comes from streams partly fed by the Thur water diversion canal to form the artificial river that runs through the eco-museum and originates upstream near the D429.
The old Thur flows into the Lauch south of Colmar.

Find out more about Japanese knotweed (Wikipedia).

Worth a visit

Reviews and comments

4.4 / 5
Based on 12 reviews

Reliability of the description
4.4 / 5
Ease of following the route
4.5 / 5
Route interest
4.3 / 5
pasci59
pasci59

Overall rating : 4 / 5

Date of your route : Sep 22, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A very beautiful walk along the Thur.

Machine-translated

CC*68
CC*68

Overall rating : 5 / 5

Date of your route : Jul 03, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes


A very beautiful hike, quite busy at the start because it is near the lake in Ensisheim.
The route is 60% forest and 40% open terrain.
Despite the heat, it was great... our dog even got to cool off in the Thur river.
Thank you.

Machine-translated

FJ6888
FJ6888 ★

Hello Mickanside

Thanks for the feedback, and glad to hear that the trail between 6 and 7 is clear. That's a bit surprising after all the rain.

Enjoy your hike!

Machine-translated

Mickanside
Mickanside

Overall rating : 4.7 / 5

Date of your route : Jul 03, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Thank you, FJ, for this lovely summer route with its many shaded areas and constant proximity to the Thur and Vieille Thur rivers! The description is spot on, and the section (6)-(7) was perfectly passable in early July.

Machine-translated

FJ6888
FJ6888 ★

Hello and thank you for your feedback.

Indeed, there are no benches on the short version. That's a shame. However, there are often tree trunks on the banks of the Thur, left there by loggers, which can be used for this purpose.
If you set off from Eiblen, you will find plenty of benches and picnic tables.
Best regards

Machine-translated

Tartine.1901
Tartine.1901
• Edited:

Overall rating : 4.7 / 5

Date of your route : Mar 23, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

A lovely walk on 23 March. We did the 10 km route without going via Eiblen (which we plan to visit another time). The explanations are very comprehensive and necessary for this route. We enjoyed the adventure on the path that isn't marked on the maps... (but seems to be well used).
The only slight drawback: there isn't a single bench on this route, which we plan to explore with a snack break.

Machine-translated

FJ6888
FJ6888 ★

Thank you for clarifying that.
If you arrived near the ford along the Thur, you also passed points 3 (footbridge) and 7 (the two ponds).
But if you didn't have the description, you didn't see the advice and options offered.
That's a shame. I hope you have better luck next time.
Best regards

Machine-translated

IsaR6863
IsaR6863

Hello,
Actually, it's well after the park, at points 6 and 7. We ended up along the Thur, near the ford, and the path was impassable. We couldn't find the path that runs along the old Thur, even though I had put the route on my watch!
I'll try again next time!
Best regards

Machine-translated

FJ6888
FJ6888 ★

Hello IsaR6863

Sorry if you couldn't find this path.
Just before you reach Le Petit Prince, 100 metres after the stone cross, at the stream (Ausserfelfbach), a fairly wide path branches off to the right into the forest but remains a few metres from the edge of a field. See this photo from Google Maps. https://goo.gl/maps/Vsp6gaeJHv8pKMcv8

It may sometimes be blocked by hunters or for forestry work, but it is fairly well used and always visible. If there is another reason, please let me know so that I can modify the description and perhaps the itinerary.

Best regards

Machine-translated

IsaR6863
IsaR6863

Overall rating : 3.7 / 5

Date of your route : Feb 08, 2022
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : Yes

Beautiful hike, but I couldn't make it to the end. After passing through the Little Prince Park, I couldn't find the right path to continue, so I had to turn back!

Machine-translated

lifael68
lifael68

Overall rating : 4.7 / 5

Date of your route : Jan 30, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

An easy 11 km hike on flat terrain. Nevertheless, this walk is pleasant along the banks of the Thur. The forest crossings are beautiful and enjoyable. Many birds can be observed at all the water points (Gerteis pond and others) and on the river.

Machine-translated

FJ6888
FJ6888 ★

Hello
Apologies for the inconvenience at point (5).
I recommended in the description to prefer the short version when the weather has been very wet.

I have just reiterated this recommendation more emphatically in the practical information section. With the very rainy spring we have had, vegetation is cluttering up the trails, which can become difficult to navigate. This is the case for the trail on the right bank of the Vielle Thur, which is not very busy but was perfectly accessible last May.

It is, of course, always unpleasant to have to turn back or change your route, but it is worth taking the risk to visit wild places that are rarely visited off the marked trails.
Best regards

Machine-translated

Les Gros Mollets
Les Gros Mollets

Overall rating : 3.3 / 5

Date of your route : Jul 09, 2021
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

Unable to locate point number 5, as vegetation has taken over.
I tried very hard, but to no avail.
It's a shame because it's halfway through the course.

That said, the route is nice, it's a real pleasure between the water and the forest, especially in summer.

Best regards to you all, have a lovely evening!
Best regards, Les Gros Mollets

Machine-translated

malou68
malou68

Overall rating : 4.7 / 5

Date of your route : May 08, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A short walk with the family, a very pleasant route, and the weather was beautiful too.
We'll do it again with our 2½-year-old who loves walking, but we'll shorten the route from 8 km to just 4 km.
Thank you for putting this route on Visorando.

Machine-translated

jacques;daubanton@wanadoo.fr
jacques;daubanton@wanadoo.fr

Overall rating : 4.3 / 5

Date of your route : Dec 07, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Machine-translated

Other walks in the area

For more walks, use our search engine .

The GPS track and description are the property of this route's author. Please do not copy them without permission.