Park in a car park of the Pic de l’Aigle (signs) north of the town of La Chaux-du-Dombief.
(S/E) 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 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 (3).
Then return to the car park on the outbound path (S/E).