The calculated distance (air line) between Siu Hei and Shau Kei Wan is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Shau Kei Wan is certainly longer, as only the direct route (as the crow flies) between Siu Hei and Shau Kei Wan has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles