The calculated distance (air line) between Mykolayiv and Hola Prystan is approximately 40 miles respectively 64 kilometers.
By car or train, the actual journey to Hola Prystan is certainly longer, as only the direct route (as the crow flies) between Mykolayiv and Hola Prystan has been calculated here.
Air line (approximately)
64 kilometers
35 nautical miles