On the shallow water near shore, a few pieces of wood are drifting. They will continue to float, until the currents will bring them ashore. If not, the water will penetrate in the wood pores, making it to sink.
The picture was captured with a Nikon D40X camera and Nikkor 18-55mm f/3.5-5.6G ED AF-S DX lens, using these settings: focal length – 55 mm, exposure time – 1/160 sec, ISO 200, lens aperture – 5.6