Patterns on Sand and Soil

Brief

Show me please your best photos of any natural or artificial patterns on soil and sand. It could be cracks, tracks of wheels, footprints, sand patterns etc. All the patterns must be on wet or dry sand or soil, not on man-made ground surfaces like asphalt, paving slabs or concrete etc People or animals are allowed in photos but no composites please. Colour and monochrome images are welcome.