I've been there 2-3 times.
1) The area is usually dead calm. (could be why most locals have motor
2) We've anchored south of Capri
. (Marina Piccola). If I remember correctly, in 30+ meters. Surrounded by HUGE yachts. Be ready to be humbled
If you have time, worth it.
3) I've read disparaging comment on Naples in this thread. I (partially) disagree. The first time we went there, yes, the most salient feature in my mind was probably the garbage bags. Naples is not Zurich.
The second time, for some reason, I really fell in love with the city. Vibrant, different. And with extraordinary pizzas. As for the Gulf itself, it is one of the most picturesque area of the Italian coast. I'll have to travel to the area again next year, for business, and am certainly looking forward to it.
As others have mentioned, Nisida is not a bad place. BUT be careful. My dinghy
has been impounded when I've left it on the wrong side of a fence (i.e. on military grounds). I also believe that the amount of space available to drop anchor
has been reduced. Locals suggest Pozzuoli, or Baia. Then take the train to Naples.
--> When entering the Gulf of Naples, my GPS lost
fix repeatedly (maybe related to the NATO base?). Never for long, but it is annoying and will probably make it difficult to approach the area on autopilot
--> here is a link to a map of several anchorages
in the vicinity: Untitled - Google Maps