London Walks - my favourite starts with a garden

My favourite walk in London starts at St Paul's and takes you over the Millennium Bridge to the Tate and then winds it's way along the South Bank to Westminster. I did this walk with Lizzie several years ago and it's now an essential element of any trip I make to London.

As you cross the road before you go down the 
walkway to the bridge there is a garden with box parterres and pink and violet tulips.

And who is that behind the hedge in a blue anorak?

It's pretty simple but unexpectedly lovely.