Pontile di Bagnoli is a reminder that Naples' coastline is not only castles, ferries, and postcard views. The pier was built for the former steelworks at Bagnoli, then reopened as a public promenade stretching out over the water toward the Gulf of Pozzuoli.
It is most rewarding if you are already exploring western Naples or the Phlegraean side of the city. The walk gives broad views to Nisida, Procida, Ischia, and Capo Miseno, with an industrial backstory that makes the scenery feel less polished and more genuinely Neapolitan.