The calculated distance (air line) between Pak Shek Kok and Hang Hau is approximately 9 miles respectively 14 kilometers.
By car or train, the actual journey to Hang Hau is certainly longer, as only the direct route (as the crow flies) between Pak Shek Kok and Hang Hau has been calculated here.
Air line (approximately)
14 kilometers
8 nautical miles