France's Loire Valley bike route is part of the EuroVelo 6 route.
Distance: 800km with various local offshoots
Difficulty: Easy
It's France's original long-distance bike route and still one of the best. The Loire River route starting in Saint-Nazaire and hugging the river and its towpath to the edge of Burgundy. It forms part of the EuroVelo 6 Atlantic Coast to Black Sea route.
Download the GPS trace in GPX format
Overview of cycling the Loire Valley
Loire Valley bike train