It never used to be like this, and I can't think of any bad experiences he has had with the sea.
He is fine with his bath, showers, the swimming pool, puddles and pretty much all other forms of water,
but gets hysterical about being on the beach because he doesn't want to be anywhere near the sea.
which is a problem for us as I live very near the sea and we used to go to the beach on a very regular basis, seeing as it is great free entertainment.
generally he is a secure and confident little boy,
so any suggestions from any one about dealing with this and hopefully getting rid of it,
(advise over dealing with any type of phobias greatly appreciated)