The last two mills of this route are located at the end of the Via dei Mulini, in Barco Reale, the historic hunting area used by the Medici family in the seventeenth century. A passage through the wall that bordered the vast estate allows you to access two seventeenth-century mills: Mulino Nannini, also known as the Mulino del Barco, and Mulino dei Poveri.
At this point, it's possible to return along the Via dei Mulini. Alternatively, you can prolongate the walk by continuing along the trekking route n.14, that returns to Anchiano via Santa Lucia. It's a moderately demanding route that will take another hour of walking.