The calculated distance (air line) between Marsassoum and Joal-Fadiout is approximately 109 miles respectively 175 kilometers.
By car or train, the actual journey to Joal-Fadiout is certainly longer, as only the direct route (as the crow flies) between Marsassoum and Joal-Fadiout has been calculated here.
Air line (approximately)
175 kilometers
95 nautical miles