The calculated distance (air line) between Piedra Blanca and Punta Cana is approximately 126 miles respectively 204 kilometers.
By car or train, the actual journey to Punta Cana is certainly longer, as only the direct route (as the crow flies) between Piedra Blanca and Punta Cana has been calculated here.
Air line (approximately)
204 kilometers
110 nautical miles