Volcanoes and hot springs in Pozzuoli

Volcanic Wonders

The Phlegraean Fields, or Campi Flegrei, is a vast volcanic caldera west of Naples characterized by diverse geothermal activity. This list features key geological sites including Monte Nuovo, a cinder cone formed during a 1538 eruption, and the Solfatara crater with its active fumaroles. Visitors can explore the Astroni nature reserve located within a volcanic crater, the ancient Roman military engineering of the Grotta di Cocceio tunnel, and historic thermal springs like the Stufe Antiche that utilize natural volcanic steam.

Phlegraean Fields

The Phlegraean Fields is a large volcano situated to the west of Naples, Italy. It was declared a regional park in 2003.

Solfatara Volcano

Solfatara is a shallow volcanic crater at Pozzuoli, near Naples, part of the Phlegraean Fields volcanic area.

Monte Nuovo

Monte Nuovo is a cinder cone volcano within the Campi Flegrei caldera, near Naples, southern Italy.

Mount Barbaro

Mount Barbaro or Mount Gauro in Italy Monte Barbaro or Monte Gauro, is one of the eruptive vents of the Phlegraean Fields, a volcanic field…

Astroni

One of the largest and best-preserved craters in the Phlegraean Fields. It is currently a WWF-managed nature reserve featuring three small lakes and dense Mediterranean vegetation.

Sweating rooms

Two ancient natural saunas built into the side of the Solfatara crater. These chambers use natural volcanic steam for thermal treatments, a practice dating back to the Roman era.

Bocca Grande

The largest and most active fumarole within the Solfatara crater. It continuously discharges pressurized sulfurous steam at temperatures reaching approximately 160 degrees Celsius.

Grotta di Cocceio

A subterranean Roman road tunnel nearly a kilometer long, designed by architect Cocceius Auctus around 37 BC. It was constructed to connect Lake Avernus with the ancient city of Cumae.