Just another day in my usual Greenwich spot. The tide is moving out and you can catch odd lighter lines in the moving water showing the movement outwards. I've always liked this effect but don't know how or why it happens. I'm guessing it's actually surface bubbles or debris being dragged by the direction of the waves.

Sandy part of the shore, as opposed to the rocks and rubbish by my usual photo spot! So another low tide when I was photographing meant I could capture the footprints of a mysterious Londoner and her dog.

I just couldn't resist bringing in the image to the shore a bit today. I managed to go out to the river at the lowest tide time and there was just all that lovely stretch of mud and stones. A very low tide, but not a spring tide (moon is about 3/4). ('Spring tide' is a tide with the greatest difference between low and high water levels in a cycle, nothing to do with the season.)