The calculated distance (air line) between Krasnodar and Goryachiy Klyuch is approximately 30 miles respectively 48 kilometers.
By car or train, the actual journey to Goryachiy Klyuch is certainly longer, as only the direct route (as the crow flies) between Krasnodar and Goryachiy Klyuch has been calculated here.
Air line (approximately)
48 kilometers
26 nautical miles