The calculated distance (air line) between Le Gros-Morne and Gros Islet is approximately 44 miles respectively 71 kilometers.
By car or train, the actual journey to Gros Islet is certainly longer, as only the direct route (as the crow flies) between Le Gros-Morne and Gros Islet has been calculated here.
Air line (approximately)
71 kilometers
38 nautical miles