Conway B.
Thank for your thoughts, you have raised some interesting points.
As I said in my original post under the Rules of the Air (in my local area at least) there is no minimum defined visibility for complying with VFR so it is not possible to “reduce visibility to below VMC”.
As you can only ‘not fly in accordance with VFR’ if you are in cloud, and if as you say fog “…is cloud that touches the ground”, then is the maximum visibility that you can have and still be in fog also the flight visibility at which you enter cloud? Is that therefore the point at which you can no longer be considered VFR?
Steve76
You have taken some good pictures. You have also made some interesting posts, however I do not consider this to have been one of them.