Hi Fay, David and anyone else watching.
11AM on Thursday 30th December outside Cannon Street Station is where we meet. Sorry for the confusion in starting times. It'll start getting dark around 3:30 so we can finish before dusk if needed.
Using the Ianvisits website (not mine) I marked a few alley ways/POI on Google maps, some provide different views of London landmarks. We don't have to cover any/all of them but they give a direction to walk in:

See you tomorrow.