The calculated distance (air line) between Tsuen Wan and Yuen Long Kau Hui is approximately 7 miles respectively 12 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 Tsuen Wan and Yuen Long Kau Hui has been calculated here.
Air line (approximately)
12 kilometers
6 nautical miles