The calculated distance (air line) between Yuen Long Kau Hui and Sai Wan Ho is approximately 17 miles respectively 27 kilometers.
By car or train, the actual journey to Sai Wan Ho is certainly longer, as only the direct route (as the crow flies) between Yuen Long Kau Hui and Sai Wan Ho has been calculated here.
Air line (approximately)
27 kilometers
14 nautical miles