The calculated distance (air line) between Yuen Long San Hui and Sai Wan Ho is approximately 16 miles respectively 26 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 San Hui and Sai Wan Ho has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles