Parc Rives de Seine
For the most leisurely ride, try out the brand spanking new Parc Rives de Seine. Once only pedestrianised on Sundays, now the wide stretches of road on the left and right banks of the Seine are dedicated to walkers, riders and boarders. Grab a Vélib, pack a picnic and ride until you find a stopping spot which takes your fancy. This is also ideal if you want to take in all the city's main sights, without dealing with cycling on the alternate side of the road.