The calculated distance (air line) between Yuen Long Kau Hui and Nam Cheong is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Nam Cheong is certainly longer, as only the direct route (as the crow flies) between Yuen Long Kau Hui and Nam Cheong has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles