The so called PhlegreanFields is a volcanic area extended in the north-west of Napoli that includes the cities of Bacoli, Monte di Procida Pozzuoli, Quarto Flegreo and some neighborhoods of Napoli. The name comes from the greek Phlegraios that means “ardent”.
The Phlegrean Fields are an old quiescent caldera of 12-15 kilometres of diameter overlooking the bay of Pozzuoli. In this territory there are 24 craters and volcanic edifices. There are same volcanic lakes such as Averno lake and other lakes by damming: Fusaro, Miseno and Lucrino.
There are several archaeological sites with also some hydrothermal vents used from the roman period. The volcanos made this area very fertile and so there are a lot of renewed agricultural products like local species of grapes.
Since 2003 there is the Regional Park of the Phlegrean Fields.