The calculated distance (air line) between Wŏnsan and Samho-rodongjagu is approximately 59 miles respectively 96 kilometers.
By car or train, the actual journey to Samho-rodongjagu is certainly longer, as only the direct route (as the crow flies) between Wŏnsan and Samho-rodongjagu has been calculated here.
Air line (approximately)
96 kilometers
52 nautical miles