Rubbish

This is my first blog so bare with me. I went for a walk today from the barrage in penarth to Cardiff bay. As I was walking back along the sea wall I noticed all the rubbish such as driftwood and this tyre washed up on the rocks. It was interesting to look at all the stuff there and got me thinking where has it come from?? And how long has it been "drifting" the wall is about 40 foot from the bottom of the sea bed when the tide is out. Anyway hope you found it interesting as it's my first one