A 





high tide 





"^^...^^^ low tide 



b1 



berm 



high tide 

 ^~~'-*»»,^^^ low tide 



1 



c 



. berm 



high tide 





^ 1 nw 1 1 



V 



berm 



high tide 





*^x^ low tide ter 



low tide ^^ 



de 



Figure 2. The principal types of beach profiles, 



23 



