[Raincoat petit bateau, shorts GAP, Jumper Reiss, Wellies Joules, Sunglasses Jigsaw]
Sometimes when there's a mammoth task in front of you (in this case building an ancient sandcastle city) the only thing to do is to throw yourself into it wholeheartedly. I find that new buckets and spades which co-ordinate with your outfit helps, as does a whole lot of energy and enthusiasm. Then when everyone starts to fade, it's time for lunch and one of these for dessert.....