The calculated distance (air line) between Centre de Flacq and Chemin Grenier is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Chemin Grenier is certainly longer, as only the direct route (as the crow flies) between Centre de Flacq and Chemin Grenier has been calculated here.
Air line (approximately)
42 kilometers
23 nautical miles