It is fairly easy to travel in France, therefore it would be clever to take advantage of the beautiful cities and coastal scenery in Bretagne Fougères, Dinan, Vannes, Carnac, Lorient, Guidel, Finistère, Vitré,....
Saint-Malo, a wonderful coastal town on the English Channel, is only 45 minutes by the TGV and usually costs less than â¬10. Buses are also available for cheaper but take a bit longer.
hitchhiking
Rennes is a good place to find rides. See here