The calculated distance (air line) between Káto Polemídia and Derýneia is approximately 60 miles respectively 97 kilometers.
By car or train, the actual journey to Derýneia is certainly longer, as only the direct route (as the crow flies) between Káto Polemídia and Derýneia has been calculated here.
Air line (approximately)
97 kilometers
52 nautical miles