While the ocean of course was lovely, and quite a relief after the days of heat, Willow's attention was currently caught up with the dark-colored sand. She'd actually assumed that it was black at first, until catching it in the right light and seeing the deep blue gleam peppered with the occasional sparkle.

So naturally the obvious course of action with this beautiful sand is to build a sandcastle. It would be really interesting to see how something upright would look in the sunlight.