Back in the fifties and sixties in Southern California it was not unusual for sharks to swim inside the surf-line.
As a matter of fact, we made a sport grabbing the baby ones by the tail and flinging them onto the beach.
Sometimes we’d even put them back in the water after a while.
Common in FL for them to be inside the surf line. For the 24 years we were there. A little un-nerving when you’re on a boogey board. More if you’re body surfing and see you’re riding the same one with a couple of sharks.