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