Descend 40 metres below Naples into a labyrinth of Greek-cut tufa tunnels, Roman cisterns, and wartime shelters. This is Naples at its most dramatic, mysterious, and completely bucket-list.
What to expect
Guides lead you through passages carved by the ancient Greeks, later expanded into a vast Roman aqueduct system and used as WWII air-raid shelters. At the narrowest point, the tunnel is just 53 cm wide — a genuine squeeze, and an unforgettable one. Roman cisterns reveal graffiti, artifacts, and the eerie quiet of a city that existed entirely out of sight. The temperature drops to a cool 14°C underground, offering blessed relief in summer. The tour emerges into a ruined Greco-Roman theatre hidden beneath a residential building.
Good to know
Napoli Sotterranea is located in the Spaccanapoli district, easily walkable from the port via taxi (10–15 min). Tours run regularly; private bookings require advance reservation. Not suitable for severe claustrophobia. Wear comfortable shoes; the descent involves stairs and low-lit passages. Allow 2 hours total.