The calculated distance (air line) between Fort-de-France and Anse La Raye is approximately 45 miles respectively 73 kilometers.
By car or train, the actual journey to Anse La Raye is certainly longer, as only the direct route (as the crow flies) between Fort-de-France and Anse La Raye has been calculated here.
Air line (approximately)
73 kilometers
40 nautical miles