Descending forty meters beneath the chaotic, roaring streets of central Naples reveals a silent, sprawling labyrinth carved from yellow tufa rock. This ancient subterranean world began as Greek quarries, expanded into a massive Roman aqueduct system, and was later used as bomb shelters during World War II. Walking through the cool, damp chambers is a surreal journey through layers of history.
The experience combines archaeology with adventure. You will walk along dry, stone-lined aqueduct channels and, at one point, carry a candle through an incredibly tight, dark stone passage to view a spectacular, hidden underground water reservoir.
One fun fact people love:
According to Neapolitan folklore, the ancient well-builders (pozzari) who navigated these tunnels were believed to be mischievous, hood-wearing spirits called 'O Munaciello, who used the secret shafts to enter homes and steal valuables or leave gifts.
Where in Naples is it?
Located in the heart of the historic center, with the main entrance situated at Piazza San Gaetano.
How to reach:
Easily reached on foot from Spaccanapoli, or by taking Metro Line 1 to the Dante or Piazza Cavour stations.
Best time to visit:
Year-round; the underground tunnels maintain a constant, comfortable temperature of about 17°C regardless of the weather outside.
Best time of day:
Mid-morning around 10:00 AM when the english-guided group tours begin running regularly.
Entry fee:
Approximately €10 to €15 per adult, which includes a fully guided tour in English.
Commute difficulty:
Moderate; involves walking down 121 steep stone steps and squeezing through highly narrow, candlelit passages.
Things nobody tells you about this place:
- The optional narrow tunnels are extremely tight and pitch black; if you suffer from severe claustrophobia, you can easily bypass these sections.
- It is noticeably cooler and damp underground, so bring a light sweater or jacket even during the peak of summer.
- The tour surprisingly concludes back on street level, where your guide will show you a Roman theater's remains built directly into a modern family's apartment.