In a matter of seconds, the undertow can increase the size of the wave to the point that it forces the stern underwater and the crew is washed overboard.
Kwimizuzwana, umsinga ongaphantsi elwandle angandisa ubukhulu Leliza ukuyakutsho kwinqanaba apho lizakunyanjela umva wesikhitshana atshone ngaphantsi kwamanzi nabasebenzi buye kuwela emanzini.