The calculated distance (air line) between Tortuguitas and San Nicolás de los Arroyos is approximately 115 miles respectively 185 kilometers.
By car or train, the actual journey to San Nicolás de los Arroyos is certainly longer, as only the direct route (as the crow flies) between Tortuguitas and San Nicolás de los Arroyos has been calculated here.
Air line (approximately)
185 kilometers
100 nautical miles