Photographed in various conditions and time of day, the surf would recede, moving multi-coloured grains of sand. Sand that would at the same time absorb water, creating tones and textures that changed with each passing of surf. 

Composition of Great Lakes beach sand. Quartz (87-94%) (white, pink, natural, grey). Feldspar (10-18%)(grey, brown, blue). Magnetite (1-3%) (black). Less than 1%: Garnet (red), Calcite (white), Ilmenite (red, brownish-black), Hornblende (green, brown, black), Epidote (yellowish-green, brownish black)