On the far southwest border of Nancy, the sprawling Parc de Brabois offers many miles of wide gravel paths. There’s a lovely network of straight-shot tree-lined alleé paths, as well as some meandering dirt and grass trails through the woods. A loop around the perimeter is 2.5 km, although there are numerous cross-paths. Runners can also use the surrounding streets to connect to Jardin Botanique Jean-Marie Pelt (botanical gardens). Here, there are more gravel paths stretching through manicured gardens and some short but intense hills. Adding a loop around the gardens makes for a route of up to 6.3 km.