Elaine D.
Yelp
We were staying in the Chiaia area of Naples a few weeks ago and strolled over to the little island to see the Castel. A lovely view of the Bay and the little fishing boats that dotted the water, and Vesuvio, of course. It's worth a look if you're staying nearby, and there are plenty of restaurants to choose from. Do eat outside to soak up the surroundings.
NOTE: We had lunch at a very nice restaurant on the island, recommended by our hotel. Unfortunately, I cannot recall it's name, except it began with an "S". Perhaps, with research, you can locate it. We sat waterside, surrounded by boats in the little harbor on abeautiful September day. We had the Frito Misto, perfectly fried calamari and shrimp, the best I've had anywhere Stateside -- light and crispy, served simply with simple lemon wedges. I had the pasta with bottarga in a delicate pumpkin sauce. Find this restaurant, if only to have this dish -- divine. My daughter had the risotto with seafood.