Around 3000km
Visited from Nantes to near Bayonne then headed to basque country at 10km of the spanish border but then headed back to Agen then Toulouse-Carcassone-Sete-Avignon-Lyon -Chalon sur Saône now i'm in Burgundy and heading back home.
I'm so glad i didn't think twice before doing it,just go ahead and bike you'll love it.