The calculated distance (air line) between Bel Air Rivière Sèche and Fond du Sac is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Fond du Sac is certainly longer, as only the direct route (as the crow flies) between Bel Air Rivière Sèche and Fond du Sac has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles