we've just booked a long weekend to E. Sussex but don't know the area at all. Could you suggest a good beach for young families and are there any good days out. We will have a 4yr old, 3yr old 1 yr old and 4mnth old (two families - not all mine!)Any local knowledge would be appreciated as we don't want to waste time trying to find where to go once we get there. Thanks in anticipation.