I've seen waves do this in Hawaii, it happens when one or more catches up with the one making beach fall and you get a stacked effect.
Coast of Costa Rica by Frank Delargy
This is the place I dream of going before I die! If God created this on earth, can you even IMAGINE what Heaven will look like?! And we get to be there everyday for eternity! Cant wait!
One of my favorite things: Dolphins
BEACH GIRL Sand Writing on the Beach.