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