One loop (with a few branches). 16-20 km. As many laps as it takes.
We follow Le Voyage à Nantes Green Line (16 to 20 km, 2026 edition), in loops. It isn’t a perfect loop: it includes a few branches and out-and-back sections, and that’s normal. To hit 100,000 steps, expect around 4 laps. No fixed finish line: we loop until you stop, or until midnight.
Official map — Le Voyage à Nantes
To see the Green Line in detail, check the official route map, served live from levoyageanantes.fr.
A reference route, to remove all mental load
The Green Line is our backbone: 16 to 20 km painted on the ground, through the strongest spots in Nantes. It isn’t a perfectly closed loop: it includes a few branches and out-and-back sections that lengthen the path. That’s normal. Why follow it? To remove the mental load of the itinerary: no GPS, no map, no thinking about where to turn. You follow the green, that’s it. Over 15 hours of walking, that’s gold. Everyone stays free to adapt: a parallel street, a detour, a shortcut. The goal is 100,000 steps in one day, not a perfect path. How many people have lived in Nantes for years and never walked the Green Line end to end? On May 8, it’s done.
Landmark points on the route
- 01Monument aux 50-OtagesStarting point · 5:00 AM
- 02Place du CommerceFirst kilometers, city still asleep
- 03Île de Nantes : ElephantLoire banks, iconic silhouette
- 04Tour LUHistorical city landmark
- 05Quai de la FosseAlong the Loire, long rhythm
- 06Tour BretagneBeating heart, halfway mark
- 07Jardin des PlantesVisual pause, no long stop
- 08Back to 50-OtagesLoop closed, time for another lap
We start together, split, regroup.
We walk together for the first steps. We get to know each other, we laugh, we have fun. Within the first kilometers, paces will differ and sub-groups will form by rhythm and affinity. That’s expected: the route follows the Green Line over several loops with small variants to avoid repetition. It also means we cross paths regularly and groups merge again throughout the day.