The calculated distance (air line) between San Tung Chung Hang and Shuen Wan is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Shuen Wan is certainly longer, as only the direct route (as the crow flies) between San Tung Chung Hang and Shuen Wan has been calculated here.
Air line (approximately)
34 kilometers
19 nautical miles