Very nice and easy walk above the lakes of the Jura, Maclu and Illay.
Calculated time: 1h55[?] 
Distance : 4.87km
Vertical gain : 197m
Vertical drop : 208m
Highest point : 1052m
Lowest point : 943m 
Difficulty : Easy
Back to starting point : Yes
Walking
Location : La Chaux-du-Dombief
(39150)
Starting point : N 46.609433° / E 5.904227° Park in a car park of the Pic de l’Aigle (signs) north of the town of La Chaux-du-Dombief (S).
Head on the Yellow-marked path to the north that winds through the forest. It quickly leads to stairs and just as quickly ends at the top of Pic de l’Aigle (1).
Continue to the north-east on this good Blue-marked path, and along a bumpy not too challenging path. Reach the first lookout point of the three lakes (2), namely the two Maclu Lakes (Grand Maclu and Petit Maclu) and the Lac de la Motte or the Lac d’Illay.
Continue in the same direction to quickly reach the second viewpoint with views of 4 lakes, the previous 3 and Lac de Narlay to the north-east.
Then return to the car park on the outbound path.
Waypoints :
D/A : km 0 - alt. 954m - Pic de l'aigle 994m
1 : km 0.61 - alt. 1023m - Pic de l'Aigle
2 : km 1.98 - alt. 981m - Lookout point over 3 lakes
3 : km 2.43 - alt. 962m - Lookout point over 4 lakes - Bélvédère des Quatre Lacs
D/A : km 4.87 - alt. 943m
No water or shelter but benches for a nice break to admire these bodies of water.
Note on the route: the route of this trail was mapped on a smartphone with the Visorando application, it differs somewhat from the route on the map; this is due to the sometimes imprecise reception because the trees sometimes block the signal, but it is still very close.
Note on markings: Initially the signs indicate the Yellow markings (Pic de l'Aigle) and Blue markings (Viewpoints) and the route is also marked in the Red-White of the GR®559A contrary to the map’s indications where this GR® follows the lakes’ shores.
Visorando and this author cannot be held responsible in the case of accidents or problems occuring on this walk.
The walk along the Hérisson waterfalls are approximately 2 km from the start at the waterfall car park in the village of Illay.
The description of this walk can be found here: https://www.visorando.co.uk/randonnee-le...
12.11km
+329m
-336m
4h25
Moderate
Starting point in La Chaux-du-Dombief - 39 - Jura The walk descends the Hérisson ('hedgehog') River with its series of rapids and waterfalls, then returns via Bonlieu, passing through the Dame Blanche viewpoint, with a panoramic view over lakes Val and Chambly and the Herisson valley.
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+183m
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3h50
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5.82km
+228m
-225m
2h20
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15.4km
+572m
-492m
6h00
Difficult
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10.72km
+468m
-461m
4h25
Moderate
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6.69km
+434m
-428m
3h10
Moderate
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The GPS track and description are the property of the author.
