These waterways enable international shipping to avoid the need to circumnavigate continents and to take the shortest paths on "round the world" voyages.
Ukwenziwa nokwanda kwamanani amancinci zenkcutshe nala akho kwindawo yonke amazibuko enqanawa eyenze nzulu intsingiselo kunye nodityaniso lokuhamba kwempahla neliphumelele kula mazibuko enqanawa eqhubeka kuqondo lovumo lothengiso olutsalela elwandle kwilizwe nokubaluleka komhlaba.