It's also easy to use the River Seine as an artery to walk anywhere in the core of Paris. You can quite easily move between the 1st, 2nd, 3rd, 4th, 5th, 6th and

It's also easy to use the River Seine as an artery to walk anywhere in the core of Paris. You can quite easily move between the 1st, 2nd, 3rd, 4th, 5th, 6th and 7th arrondissements by walking the Seine and taking one of the many bridges to get where you want to go. The Seine is the real car free (well, not entirely but it's geared for walking and cycling) highway for pedestrians.