I helped out with a Thames foreshore clean-up a couple a few years ago in Greenwich and we cleared up tons of rubbish over a couple of hours.  The tide washes up a huge amount  each day in Greenwich and I always like to have a look over the side to see what it's brought in.  There always seems to be a ball or two there,  lost shoes, many plastic bottles, the occasional dead rat and at one time, a lot of floating coconuts!  Today I spotted a long piece of wood down on the shore with a line-up of oyster shells placed on the top.  I love a shell, even a common old oyster shell and I thought this arrangement was rather eye-catching!

I'm really looking forward to visiting my sister tomorrow for a couple of days.  I'll catch up with your blips when I return x