This proposed entry has nothing to do with worshipping Tom Brady but that might have a higher chance to get inscribed.
Just outside Naples, far enough to be away from the crazy driving, narrow roads and honking vespas, is the Archeological Park of Pausilypon. You need to make a reservation to visit the park and I stood in front of the gate not knowing how to continue to my actual destination: Gaiola.
I found a small alley without any sign that looked like it was going the right way and surely after 10min I stood at the seaside. A dirty beach greeted me in the heat. Walk around it and there is a guarded entrance to the islands. If you want to go swimming here you need to pay a small fee and present an ID. They are very strict on conserving the area and fighting the trash that constantly comes onshore.
Previously I had inquired about a snorkeling tour (you are not allowed by yourself, only swimsuits) but they only do that Saturdays but it was too cold in late May anyway. Free entry is given to the info center and the viewing platform. That's where you can see the islands with the ruins. It is nothing special. The marine life, as much as I am up for protection, is not unique. If anything then the place is important for having a clean spot next to that cesspool called Naples. A weak site I never expect to be world heritage and rightly so it was already rejected in 2008. Seeing how it involves a parking fee, a long walk up and down and you get to see very little I can only recommend this if you have a tour booked to both parks.