The calculated distance (air line) between Pamplemousses and Poste de Flacq is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Poste de Flacq is certainly longer, as only the direct route (as the crow flies) between Pamplemousses and Poste de Flacq has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles