The calculated distance (air line) between Yŏnggwang-ŭp and Wŏnsan is approximately 60 miles respectively 96 kilometers.
By car or train, the actual journey to Wŏnsan is certainly longer, as only the direct route (as the crow flies) between Yŏnggwang-ŭp and Wŏnsan has been calculated here.
Air line (approximately)
96 kilometers
52 nautical miles