It is to be remembered that no undertow anywhere is broader than 40 ft. (usually 20 ft.) and there is usually an interval distance of 50 to 100 yds before meeting the next undertow.
Kufuneka ikhunjulwe ukuba akukho tsalo luphantsi naphina oluvulekileyo ngaphezu kweenyawo ezingamashumi amane (iqhele ukuba ezingamashumi mabini) kwaye kuqhele ukuba nophumlo kumgama weyadi yamashumi amahlanu ukuya ekhulwini phambi kokudibana notsalo oluphantsi oluzayo