Elaine
I don't /can't speak Welsh but my DS goes to a Welsh school where only Welsh is spoken in the main. He started at 3 and is now of course fluent. I tried Welsh classes, but I'm afraid it was a lost cause. I'm pleased that we made the chose to send him to a Welsh school although homework can be a problem. Of course he can now do everything in both Welsh and English - initialy they are quite a way behind the children in english speaking schools but by 9 they have caught up and are bilingual ( hopefully with better spelling ability than his mother !)