The calculated distance (air line) between Hau-ri and Yŏnggwang-ŭp is approximately 134 miles respectively 215 kilometers.
By car or train, the actual journey to Yŏnggwang-ŭp is certainly longer, as only the direct route (as the crow flies) between Hau-ri and Yŏnggwang-ŭp has been calculated here.
Air line (approximately)
215 kilometers
116 nautical miles