The calculated distance (air line) between Mahébourg and Plaine des Papayes is approximately 25 miles respectively 40 kilometers.
By car or train, the actual journey to Plaine des Papayes is certainly longer, as only the direct route (as the crow flies) between Mahébourg and Plaine des Papayes has been calculated here.
Air line (approximately)
40 kilometers
22 nautical miles