Is it possible to cycle along the river seine from Le Havre to Paris?
from Le Havre to Rouen you can do it easily I know very the road (but long) but from Rouen to Paris I suppose you can do it but you need to study the road before to avoid the highway. All together it takes approx. 3 hours by car, so depending of your speed there is approx 300 kms from Le Havre to Paris. Do not forget the weather also, Normandy is beautiful and green but also very wet!!!