Scientifically speaking, there are sharks that can migrate from salt water to fresh water and still survive, but their life span is reduced due to the lack of big fish to feed off of.
Of course you do, just go fill a kiddie pool with water and pit some sand around it. Wa la! Your very own beach!
Can it be throwing people off boards as they surf by? I'd like to watch some people get eaten alive...
It's quite a big beach, with a lovely caravan site near it that overlooks the ocean. Still, in Wales, they have an American themed shop centre with a funfair right next to the beach and the waves pick up very high and very fast.