Apart from the Solfatara crater, the Campi Flegrei is a fairly unimpressive place to visit, it's true. The bulk of the caldera is under the sea, and much of the inland part is built up in a pretty nondescript way. As I said, Pozzuoli, the main town, is a very ordinary sort of place, hardly a tourist Mecca. Naples is a few miles away and is outside the Campi Flegrei caldera. I don't think that even a big eruption of Vesuvius would trouble Naples too much except to scare everyone to death. Earthquakes are a far greater threat. But the nearby caldera is a very lively place seismically and who knows what could happen. Four million people live in the metropolitan area of Naples. There is a massive evacuation plan in place should the planet turn angry. The trouble is, volcanic soils are so fertile, and the Bay of Naples is such a good place for ports and big industries. The fruit and the wine and the pasta (especially from Gragnano in the case of the pasta) are all as good as it gets. The San Marzano tomatoes are the best anywhere. Try the Lacryma Christi wines, grown in vineyards on the slopes of Vesuvio. And there's the pizza in Naples, the best in the world. I asked the man in a little pizzeria just across from the Archeological Museum for a pizza fritta. He gave me a knowing look, then, three minutes later, presented me with a deep-fried folded pizza at least four times as big as the biggest pasty I've ever seen. But I would not be beaten. I ate the lot. I didn't need food for the next 36 hours. We won't mention the Camorra. Just watch your pockets in Napoli, that's all. But looking across the bay from anywhere - so beautiful. You have the islands of Procida, Ischia and Capri, and standing at Marina Grande below Sorrento you see the whole bay with its islands, right across to Vesuvius with the conurbation of Naples at its foot, best seen at night. There's nowhere on the planet I'd rather be. Almost best of all, on the other side of the Sorrentine peninsula there's the Amalfi coast. Take my advice and let someone else drive you along the Amalfi coast road.