The calculated distance (air line) between Sai Kung and San Tung Chung Hang is approximately 22 miles respectively 35 kilometers.
By car or train, the actual journey to San Tung Chung Hang is certainly longer, as only the direct route (as the crow flies) between Sai Kung and San Tung Chung Hang has been calculated here.
Air line (approximately)
35 kilometers
19 nautical miles