The lungarni (the promenades on each side of the Arno) in the historic centre are already well-equipped with cycle lanes. Try to keep between the river and the façades of the historic palazzos, maybe crossing some of the bridges: Ponte alle Grazie, Ponte Vecchio, Ponte Santa Trinita, Ponte alla Carraia and Ponte Vespucci. After the last of these, it is but a short distance to the Cascine Park, the green lung of Florence. The park is also blessed with numerous cycle paths, which eventually lead to the Ponte all’Indiano suspension bridge, where the Mugnone tributary flows into the Arno.
Once under the bridge, you are on another interesting stretch of the cycleway, the Renai section.