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Discover Narni's underground secrets with this guided tour of ancient churches, Roman aqueducts, and medieval dungeons, led by passionate local guides.
The Narni: Guided underground Experience offers a captivating journey into the hidden depths of this Umbrian town, combining history, archaeology, and storytelling. Priced to suit a range of travelers, this 1-hour tour begins at Via S. Bernardo, 12, and takes you through Narni’s underground sites, including a 13th-century underground church, Roman aqueduct tunnels, and the dungeons of the Holy Office. With an impressive rating of 4.6 out of 5 based on 64 reviews, this tour has earned praise for its engaging guides and fascinating sights.
While the tour is mostly in Italian, an audio guide in Spanish, French, and English helps non-Italian speakers follow the experience. The skip-the-line entrance ensures a smooth start, and the 1-hour duration fits easily into a day of sightseeing. It’s especially ideal for those interested in archaeology, medieval history, or underground architecture. However, visitors should note that mobility impairments are not accommodated, and large luggage or bags are not allowed.


This guided underground experience starts at the former Dominican convent of Santa Maria Maggiore in Narni, Italy. The site was uncovered in 1979 by six young local cavers, and since then, volunteers have worked to recover and improve its spaces. Visitors enter through a separate entrance, bypassing queues, to explore the complex underground network.
The highlight is the 13th-century underground church, dedicated to Archangel Michael. Thanks to a multimedia system, visitors see how the site evolved over the centuries, with recent archaeological discoveries adding new layers to its story. The church was likely built on even older structures and, after being looted in 1860 and damaged during World War II, is now gradually revealing its frescoed walls, which are being restored after centuries of limestone coverage.

The underground church was reconsecrated in 2000 under the name St. Mary of the Cliff, after its original dedication was lost to history. Visitors get a vivid picture of its varied phases thanks to multimedia displays, showing how it was incorporated into the 14th-century Dominican convent. The recent restorations of limestone-covered frescoes make it possible to appreciate the artistic elements that survived centuries of neglect.

Adjacent to the underground church, visitors find an interactive video system that explores Roman aqueduct excavation in Narni. Through this feature, guests virtually enter the tunnels, gaining insight into the ancient water supply systems that once served the city. These tunnels are a testament to Narni’s importance during Roman times, with engineering marvels preserved beneath the surface.
One of the most haunting aspects of this tour is the preserved dungeons of the Holy Office. A single cell remains intact, offering a stark reminder of the medieval prison system established to combat heresy. Thanks to the Vatican Archives, the history of some prisoners is reconstructed, with graffiti on the walls acting as silent testimonies of their stories. This part of the tour reveals a darker side of Narni’s past, making it compelling for history buffs.
More Great Tours NearbyBeyond the underground spaces, the tour includes exploration of the upper church, where visitors admire a beautiful Byzantine mosaic from Narni’s first cathedral. Additional remains and frescoes scattered throughout the site enrich the experience, connecting visitors with the town’s long history from early Christianity through the medieval period.
Known for passionate storytelling, guides like Letizia are praised for their ability to make history engaging. They use enfatic and expressive narration to bring Narni’s underground secrets to life. Visitors appreciate the young, enthusiastic guides who make the experience lively and memorable, avoiding a purely dry lecture style.
To fully enjoy the experience, visitors should reserve in advance, especially since the tour can be full. It’s best suited for those comfortable with confined spaces, as the underground areas are narrow and dark. The tour is conducted only in Italian, but the audio guide offers support in other languages. Large luggage or bags are not permitted, so travel light if planning to join.

People with mobility impairments should be aware that the tour is not suitable for them due to the underground layout. The tour involves walking through tight and uneven spaces, so it’s ideal for those prepared for such conditions.
Reservations are flexible, with free cancellation up to 24 hours before the tour. Payment can be made later, offering flexibility in planning. Checking availability for specific times ensures a smooth booking process, especially during busy periods.
This experience combines archaeological discovery, history, and storytelling, making it more than just a walk through ruins. The interactive elements and the chance to see preserved frescoes and medieval dungeons provide a vivid look into Narni’s layered past. The passionate guides enhance the tour, making it engaging and educational.
While the tour’s 1-hour duration is convenient, it may feel rushed to some visitors given the richness of the site. The language restriction (only Italian for the guided part) can be a barrier, though the audio guide in other languages helps. The underground spaces are not suited for those sensitive to confined or dark environments.
For those interested in medieval history, archaeology, or underground architecture, this tour offers a unique and visually engaging experience. The combination of multimedia displays, archaeological remains, and evocative storytelling makes it a memorable visit. While it’s best suited for those who can handle confined spaces and small group settings, it rewards visitors with a deepened understanding of Narni’s hidden layers.
Overall, this tour provides excellent value, especially considering the fuller picture you gain of Narni’s historical complexity. Its enthusiastic guides and well-preserved sites make it a highlight for curious travelers eager to explore beneath the surface of this charming Umbrian town.
Is the tour suitable for children or families?
The underground spaces and confined areas may not be suitable for very young children or families with mobility concerns.
Are there any language restrictions?
The guided tour is only in Italian, but an audio guide is available in Spanish, French, and English.
How long in advance should I book?
Booking ahead is recommended, especially during busy seasons, to secure a spot and avoid disappointment.
What should I bring for the tour?
Travel light, as large luggage or bags are not allowed into the underground sites. Comfortable shoes are advisable due to uneven surfaces.