So after getting back form the track I had an afternoon to myself and had heard about a thread on the forum (LFGSS) called bike tag.
Basically the idea is someone takes a photo of their bike near a London Landmark (or somewhere easily distinguishable or else its no fun!) and then you have to find that spot, take a picture of your bike in the same place and then find a different place for the next guy to hunt down. Luckily the last post was not too far from my house so off I went...
The previous place (on the South side of the Thames inbetween Surrey Quays and Greewich) The boat in the picture is some Navy vessel that's been moored up for the past week or so;
The new place - shhhh, it's a secret for now!