I'm going to Barcellona in a couple of weeks for a mate's wedding and decided to ride down as I didn't do enough miles in the south of France this summer. 
It's gonna be quick. I'll be travelling on my own. Two days going down, two days going back, so it's gonna be a fair share of motorways, but I wanted to get off the motorway in a few bits. I don't know "that side" of France that much. Travelled from Italy to Normandy/Brittany and then down to Tours on the bike ages ago, that's all.
I mostly travelled in the south of France or towards Switzerland, going back to Italy by car/bike.
I'll be getting the train to Calais. Splitting it as google maps routes it is 700 something kilometers per day, that I am ok with.
I was considering probably doing quite some distance on day one (instead of splitting the trip in half) on the motorway in order to probably find easily some nice roads when further south. There is always some fast, winding "national" roads in France where you can still make some decent progress along the day.
I use them as much as possible when I travel towards Switzerland and Italy and I was hoping to find something similar on the west side.
Didn't have time to check my Michelin atlas yet, so any suggestion is welcome.
Thanks!

It's gonna be quick. I'll be travelling on my own. Two days going down, two days going back, so it's gonna be a fair share of motorways, but I wanted to get off the motorway in a few bits. I don't know "that side" of France that much. Travelled from Italy to Normandy/Brittany and then down to Tours on the bike ages ago, that's all.
I mostly travelled in the south of France or towards Switzerland, going back to Italy by car/bike.
I'll be getting the train to Calais. Splitting it as google maps routes it is 700 something kilometers per day, that I am ok with.
I was considering probably doing quite some distance on day one (instead of splitting the trip in half) on the motorway in order to probably find easily some nice roads when further south. There is always some fast, winding "national" roads in France where you can still make some decent progress along the day.

I use them as much as possible when I travel towards Switzerland and Italy and I was hoping to find something similar on the west side.
Didn't have time to check my Michelin atlas yet, so any suggestion is welcome.
Thanks!