The calculated distance (air line) between Fond du Sac and Pamplemousses is approximately 4 miles respectively 6 kilometers.
By car or train, the actual journey to Pamplemousses is certainly longer, as only the direct route (as the crow flies) between Fond du Sac and Pamplemousses has been calculated here.
Air line (approximately)
6 kilometers
3 nautical miles