How Long Is the Naples Underground Tour?
How long the Naples underground takes: about an hour at most sites, 1.5 to 2 hours on Napoli Sotterranea, and which sites need a booking, with the tour times.
Most Naples underground tours take about an hour; Napoli Sotterranea’s listing allows 1.5 to 2 hours, because it adds the Roman theatre to the cisterns. The Spanish Quarters route and the Bourbon Tunnel’s standard route are about an hour each, and the catacombs 45 to 50 minutes on the listing (the catacombs say about an hour). Plan another 15 minutes to arrive early. And yes, book: every visit leaves at a set time, and the Bourbon Tunnel and the catacombs require a booking. The one-hour Spanish Quarters underground tour is from US$20 a person (checked October 2026).
Check Spanish Quarters tour dates

How long each one takes
| Visit | Time | Runs |
|---|---|---|
| Napoli Sotterranea | 1.5 to 2 hours | English and Italian, first visit 10:00, last 18:00; Thursday 21:00 for booked groups of 10+ |
| Spanish Quarters route | 1 hour | Weekdays 10:00, 12:00, 14:00, 16:30; weekends and holidays also 11:00 and 18:00 |
| Bourbon Tunnel, standard | About 1 hour | Fri-Sun and holidays, 10:00, 12:00, 15:00, 17:00 |
| Bourbon Tunnel, Via delle Memorie | 1 hour 15 | Fri-Sun and holidays, 11:00 and 16:00 |
| Bourbon Tunnel, Adventure route | 1 hour 25 | Fri-Sun and holidays, from Via Morelli |
| Catacombs of San Gennaro | 45 to 50 minutes on the listing; about an hour by the catacombs | Every hour, 10:00 to 17:00; closed Wednesday (Oct 2026) |
| San Lorenzo Maggiore | Guided slots | English at 11:00, 12:00, 13:15, 14:15, 15:15 and 17:00 |
Times are the sites’ and listings’ own, read in October 2026. Departure times can change; your voucher has the one that counts.
Do you need to book?
The Bourbon Tunnel and the catacombs: yes. Both say booking is required, and the catacombs’ listing adds that a late arrival cannot join a later tour.
Napoli Sotterranea: it helps. The site takes small groups without a reservation, but the wait at the entrance is longest in high season. The GetYourGuide ticket skips the ticket queue, though it is not a priority entrance, and it is non-refundable.
The Spanish Quarters route and San Lorenzo: book a slot. Both run at set times; one visitor to San Lorenzo this October found they needed a time slot, not just a ticket.
Fitting it into a day
An hour underground fits around almost anything. Napoli Sotterranea and San Lorenzo Maggiore share Piazza San Gaetano, so the two together make a two-to-three-hour morning, and Via dei Tribunali has pizza at the end of it. If you would rather a guide put the day together, the **small-group top sights tour is 2.5 hours with an hour underground, and the old town walk with the Roman ruins 3 to 5 hours with lunch as an option; the Spaccanapoli and pizza guide has the walking order. Napoli Sotterranea’s after-hours tour is 2 hours in the evening with a pizza included.
Pick by the time you have:
Spanish Quarters Underground
Cisterns and shelters, rated 4.8, free cancellation up to 24 hours before.
Check dates →Napoli Sotterranea
The cisterns plus the Roman theatre, 1.5 to 2 hours. Non-refundable.
See Napoli Sotterranea →Top Sights + Underground
2.5 hours: an hour underground, then Spaccanapoli and San Gregorio Armeno.
See the top sights tour →Prices and review counts as listed on GetYourGuide in October 2026, not a quote.
Check dates and book

An Hour Under the Spanish Quarters
LAES's Spanish Quarters route is an hour in the cisterns and wartime shelters, in English, Italian or Spanish, with up to six departures a day.
Check Spanish Quarters Tour Dates