The calculated distance (air line) between Dunay and Ungsang-nodongjagu is approximately 102 miles respectively 164 kilometers.
By car or train, the actual journey to Ungsang-nodongjagu is certainly longer, as only the direct route (as the crow flies) between Dunay and Ungsang-nodongjagu has been calculated here.
Air line (approximately)
164 kilometers
88 nautical miles