Even this mere list of the most important navigational tasks shows clearly that there are considerable differences between sailing in confined and heavily trafficked waters and sailing on the open sea.
Nakuba kukho umndilili wemisebenzi yohambo ngenqanawa ebaluleke kakhulu ibonisa ngokucacileyo ukuba kukho ukucingela ngokwahlukeneyo phakathi kokuhamba ngesikhephe xinekileyo nakumanzi ahamba ngesantya esiphezulu nokuhamba ngesikhephe kulwandle oluvulekileyo.