Located 20 km south of Grenoble, the Castle Park of Vizille is a worth it destination run. Anchored by the Château de Vizille that’s now a Museum focused on the French Revolution, there are 100 acres of gorgeous grounds, from grand lawns and gardens to a lake and canal-side paths, and some forested sections. A loop of the canal paths is ~4 km, but this can be a longer run if some of the additional grounds are included. NOTE: Closed Tuesdays.
Longer Run: For those who would like a long run on quiet with pretty views, the cycle route between the Château de Vizille and the Le Chateau d’Uriage is a great option. It’s ~20 km out and back, and fairly flat. More info, which includes a GPX route that can be downloaded.