The calculated distance (air line) between Anse Royale and Beau Vallon is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Beau Vallon is certainly longer, as only the direct route (as the crow flies) between Anse Royale and Beau Vallon has been calculated here.
Air line (approximately)
16 kilometers
9 nautical miles