Lac d'Ilay, also called Lac de la Motte, is a lake in the Jura department of France, about 14 km south of Champagnole in Franche-Comté. It lies at an altitude …
Beautiful hiking trail, well-maintained path. The area between Grand/Petit lac Maclu and Lac d'Ilay is currently (August 2022) closed to the public (nature reserve). The route on the west side of Lac d'Ilay is unfortunately less attractive.