The calculated distance (air line) between Jardine's Lookout and Sham Tseng is approximately 11 miles respectively 18 kilometers.
By car or train, the actual journey to Sham Tseng is certainly longer, as only the direct route (as the crow flies) between Jardine's Lookout and Sham Tseng has been calculated here.
Air line (approximately)
18 kilometers
10 nautical miles