The calculated distance (air line) between Yangliuqing and Beihuaidian is approximately 31 miles respectively 50 kilometers.
By car or train, the actual journey to Beihuaidian is certainly longer, as only the direct route (as the crow flies) between Yangliuqing and Beihuaidian has been calculated here.
Air line (approximately)
50 kilometers
27 nautical miles