The calculated distance (air line) between Sok Kwu Wan and Yuen Long Kau Hui is approximately 18 miles respectively 29 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 Sok Kwu Wan and Yuen Long Kau Hui has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles