The calculated distance (air line) between Richelieu and Plaine des Papayes is approximately 12 miles respectively 19 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 Richelieu and Plaine des Papayes has been calculated here.
Air line (approximately)
19 kilometers
10 nautical miles