The calculated distance (air line) between Sai Ying Pun and Shuen Wan is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Shuen Wan is certainly longer, as only the direct route (as the crow flies) between Sai Ying Pun and Shuen Wan has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles