This is a great picture. It's completely blurred except for the sliver of clarity focused on the pretty pebbles and rough bench. Click the original size and have a look for yourself. It's just awesome. The combination of focal length, aperture, angle, all of it. I could sit here all day and compliment it!
That said, I have memory of taking it. It's just one of those images you come back to and go, "Hey!"