The calculated distance (air line) between Sai Wan Ho and Sheung Shui is approximately 17 miles respectively 28 kilometers.
By car or train, the actual journey to Sheung Shui is certainly longer, as only the direct route (as the crow flies) between Sai Wan Ho and Sheung Shui has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles