The calculated distance (air line) between Sham Shui Po and Yuen Long Kau Hui is approximately 12 miles respectively 19 kilometers.
By car or train, the actual journey to Yuen Long Kau Hui is certainly longer, as only the direct route (as the crow flies) between Sham Shui Po and Yuen Long Kau Hui has been calculated here.
Air line (approximately)
19 kilometers
10 nautical miles