The calculated distance (air line) between Marsaxlokk and Hal Gharghur is approximately 8 miles respectively 12 kilometers.
By car or train, the actual journey to Hal Gharghur is certainly longer, as only the direct route (as the crow flies) between Marsaxlokk and Hal Gharghur has been calculated here.
Air line (approximately)
12 kilometers
7 nautical miles