The calculated distance (air line) between Shek Wai Kok and Tuen Mun San Hui is approximately 10 miles respectively 15 kilometers.
By car or train, the actual journey to Tuen Mun San Hui is certainly longer, as only the direct route (as the crow flies) between Shek Wai Kok and Tuen Mun San Hui has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles