The calculated distance (air line) between Mui Wo Kau Tsuen and Tuen Mun is approximately 9 miles respectively 14 kilometers.
By car or train, the actual journey to Tuen Mun is certainly longer, as only the direct route (as the crow flies) between Mui Wo Kau Tsuen and Tuen Mun has been calculated here.
Air line (approximately)
14 kilometers
7 nautical miles