Walking in the sand, head down, lost in the search for textures, it struck me. No, not a bird dropping or any other such beach related object, but the idea that the sand at the beach, is like a mini sand dune and the texture of the surface is revealed through shadows. The indents and dips created by the movement of man, animal and machine traversing from path to shore produce patterns and reveal clues to the activities of those who have tread before.
The sand above was stirred up by a machine but only partly disturbed, the rest remains smooth except for the tell tale sign of a visit by a seagull.
Try a texture revealing shadow hunt yourself. It offers another way to see the world around you.