The calculated distance (air line) between Tin Shui Wai and Chek Chue is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Chek Chue is certainly longer, as only the direct route (as the crow flies) between Tin Shui Wai and Chek Chue has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles