The calculated distance (air line) between Yuen Long San Hui and Chek Chue is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Chek Chue is certainly longer, as only the direct route (as the crow flies) between Yuen Long San Hui and Chek Chue has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles