I am planning to go in 4 days Lon-Par vie Newhaven and the French route seems to me nice and quiet, but what I am not sure is about the London-Newhaven section, which I will like to complete in one day, starting very early (6-7am) and arriving hopefully there to take the 5pm ferry and sleep once we are in Dieppe. But I have 2 questions:
1. Are the roads from London to Newhaven safe enough for cycling? They seem to be very narrow and car probably drive fast there.
2. Will we be able to complete this section in just one day taking into account we are just newbies and only commuting by bike to work?
I would appreciate any comment about this, thanks