The calculated distance (air line) between Hung Shui Kiu and Tsz Wan Shan is approximately 15 miles respectively 24 kilometers.
By car or train, the actual journey to Tsz Wan Shan is certainly longer, as only the direct route (as the crow flies) between Hung Shui Kiu and Tsz Wan Shan has been calculated here.
Air line (approximately)
24 kilometers
13 nautical miles