The calculated distance (air line) between Río Guayabal de Yateras and Las Tunas is approximately 132 miles respectively 212 kilometers.
By car or train, the actual journey to Las Tunas is certainly longer, as only the direct route (as the crow flies) between Río Guayabal de Yateras and Las Tunas has been calculated here.
Air line (approximately)
212 kilometers
114 nautical miles