The calculated distance (air line) between So Kwun Wat Tsuen and Nai Chung is approximately 16 miles respectively 27 kilometers.
By car or train, the actual journey to Nai Chung is certainly longer, as only the direct route (as the crow flies) between So Kwun Wat Tsuen and Nai Chung has been calculated here.
Air line (approximately)
27 kilometers
14 nautical miles