When I went down to the woods today

Well, I tell a lie. It's more like "when I went down to the woods last Saturday", but since I spent all of today in an office photocopying, I thought it would be more interesting to post about this.
So, last Saturday I decided to stroll down a path near my house which I had never strolled down before, and after a little while found myself in the middle of the woods. The really truly proper middle of the woods, as if all of London had disappeared! That in itself was pretty exciting.
A little bit further in, I came across this, which was my first clue that I had happened upon an art installation which was taking place throughout the wood over the bank holiday weekend. This was particularly pleasing, as I had heard about it, and was planning on going, but I thought it was miles and miles away. But it wasn't! It was just down the road!