The calculated distance (air line) between Nai Chung and San Tung Chung Hang is approximately 23 miles respectively 37 kilometers.
By car or train, the actual journey to San Tung Chung Hang is certainly longer, as only the direct route (as the crow flies) between Nai Chung and San Tung Chung Hang has been calculated here.
Air line (approximately)
37 kilometers
20 nautical miles