Natural channels and canals enable world shipping to achieve considerable savings in distances, time, and hence costs if it makes use of these bottlenecks.
Imijelo yendalo kunye nemijelokazi yenza ukuba ushishino ngeenqanawa kwilizwe lufumane ugcino oluqwalaselekayo mgama ngaxesha-nye namaxabiso ukuba isebenzisa ngendlela intamo zebotile.