Briony Hume discovers that the Sandcastle at Sellicks beach isn't the bucket-and-spade variety, it's a commanding beach house set high on cliffs overlooking the beach with views all the way to Port Willunga in one direction and Cape Jervis in the other. The house is spread across two levels, with most of the top floor devoted to an enormous living and dining area. Downstairs is kid heaven with a huge rumpus room and table tennis table for the rare occasions when they may tire of the sand and surf. With four bedrooms this house can sleep up to 14 people.