If you happen to be travelling across a current - that is if the tidal current comes on to your boat directly abeam - then you must realize that a tidal current displaces all the water as one body and your boat will be likewise displaced.
Ukuba kwenzeke ube uhamba unqumle umsinga, ukuba ukuzala nokurhoxa komsinga kuvela kwisikhephe sakho ngqo ukhanyo, ngoko ke kufuneka uqonde ukuba ukuzala nokurhoxa komsinga amanzi onke njengesiqu esinye kwaye isikhephe sakho sizakubekwa.