The calculated distance (air line) between Yuen Long Kau Hui and San Tung Chung Hang is approximately 13 miles respectively 21 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 Yuen Long Kau Hui and San Tung Chung Hang has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles