The calculated distance (air line) between Tuen Mun San Hui and Pat Heung is approximately 8 miles respectively 13 kilometers.
By car or train, the actual journey to Pat Heung is certainly longer, as only the direct route (as the crow flies) between Tuen Mun San Hui and Pat Heung has been calculated here.
Air line (approximately)
13 kilometers
7 nautical miles