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Discover Rome's underground secrets with this 2-hour tour exploring the Piazza Navona and Trevi Fountain districts beneath the city streets.

The Rome: Piazza Navona & Trevi District Underground Pass offers a fascinating look beneath the bustling streets of Rome for just $34.70 per person. With a duration of approximately 2 hours, this self-guided experience is designed for those curious about the city’s lesser-known layers. The tour starts at 10:00 am from the Touristation Navona office and includes reserved entrance tickets with audio guides in six different languages.
While the main landmarks—Piazza Navona and the Trevi Fountain—are well known, this tour takes you 16 feet underground, revealing ancient structures that most visitors never see. The experience is ideal for travelers wanting a more intimate understanding of Rome’s history, especially on rainy days, since both parts are indoors. However, it’s a self-guided tour, so it suits those comfortable navigating independently rather than seeking a guided group.

Planning more time in Rome? We've covered other experiences worth considering.

The journey begins beneath Piazza Navona at the Stadio di Domiziano, a rare example of a masonry stadium built around 85-86 A.D.. This site was created to honor the Certamen Capitolino Iovi, a Roman competition modeled after Olympic games. Today, visitors can explore the remains of this ancient stadium, which sits five meters underground.
The audio guide brings the site to life, explaining how this structure once hosted spectators cheering for Roman athletes and gladiators. Since the site is indoor and indoors, it offers a comfortable way to learn about Roman entertainment and architecture. The 40-minute visit includes admission tickets, making it an efficient yet enriching stop.

After exploring Piazza Navona, the tour takes you beneath the Trevi Fountain to the Vicus Caprarius, an underground water system discovered in 1999. Located under a cinema basement, this site features a water tank connected to the Vergine aqueduct, once vital to Rome’s water supply.
The 40-minute exploration allows visitors to see the ancient water infrastructure up close, and admission is free. The audioguide helps reveal how the aqueducts connected Rome’s water channels, providing a unique glimpse into the city’s engineering past. Since both stops are indoors, this part of the tour offers a cool escape from the sun or rain.

This experience is completely self-guided, relying on audio guides rather than a live guide. The reserved entrance tickets ensure quick access, but there’s no guided commentary. This setup allows visitors to explore at their own pace, pausing to absorb the history or move on quickly, depending on interest.
The ease of access and indoor locations make it an ideal choice for those seeking flexibility and comfort. Still, some may find the lack of guided narration less engaging if they prefer a more storytelling-oriented experience.

The tour begins at 10:00 am at the Touristation Navona office, located at Piazza Navona, 25, Rome. The ticket redemption process is straightforward—most travelers report that public transportation nearby makes reaching the meeting point convenient.
Participants should report to the Touristation Navona office to redeem their vouchers, and the experience is most suitable for most travelers, given the accessible nature of the sites and the self-guided format. There’s no hotel pickup or drop-off, so plan transportation accordingly.

This underground tour appeals most to those interested in history, archaeology, and architecture but comfortable exploring independently. It’s a short, indoor experience, making it well-suited for rainy days or travelers wanting a break from walking in the sun.
The price point offers good value considering the two sites and audio guides included. However, it requires a bit of self-direction and patience with finding the locations and using the audio guides.

While the majority appreciate the unique underground perspective and informative audio guides, some find the experience rushed or challenging to locate. One review describes it as “interesting” but notes the location was hard to find, emphasizing the importance of using detailed directions.
A few mention the lack of a live guide as a downside, preferring more interactive storytelling. Nevertheless, many praise the cool indoor environment and the chance to see ancient structures that are otherwise hidden beneath Rome’s streets.

This tour pairs well with other skip-the-line visits like the Vatican Museums or Colosseum, but it offers a more specialized focus on underground archaeological sites. It’s a less crowded, quieter option that complements the more popular landmarks.
For travelers who want a self-paced exploration of Rome’s underground layers, this pass provides an affordable and flexible option. It’s an excellent add-on for those already planning to visit Piazza Navona and the Trevi Fountain area.
The Rome: Piazza Navona & Trevi District Underground Pass provides a unique glimpse into the city’s subterranean past at an accessible price. While it’s self-guided and requires some effort to locate, it rewards visitors with well-preserved ruins and engineering marvels beneath famous landmarks.
The indoor, cool environment makes it a practical choice for all weather conditions, and the audio guides help deepen understanding without the need for a guide. The experience best suits history enthusiasts and independent explorers who appreciate flexible, educational outings.
This tour adds a layer of depth to your Rome visit, especially if you’re eager to understand how ancient Rome still lives beneath the streets. It’s worth considering if you want a short, insightful escape from the busy tourist scene.
“A very niche experience, something to do when you've done "all of rome". It was interesting, and both parts were quick to do (40 mins). Don't do i…”
What is included in the ticket price?
The ticket price includes reserved entrance tickets to both the Piazza Navona underground site and the Vicus Caprarius aqueduct, along with audio guides in six languages.
How long does the tour take?
The total experience lasts about 2 hours, with 40-minute visits at each site.
Is this tour guided by a person?
No, it’s a self-guided experience using audio guides. There is no live guide accompanying the tour.
Where do I meet for the tour?
The meeting point is Touristation Navona at Piazza Navona, 25. You must redeem your voucher there before exploring.
Can I visit this underground site if I have mobility issues?
The data doesn’t specify accessibility details, but both locations are indoors and at ground level. It’s best to verify further if mobility is a concern.
Are food and drinks included?
No, food and drinks are not included, and there’s no mention of a guided tour or additional amenities.
Is there a cancellation policy?
Yes, free cancellation is available up to 24 hours in advance. Cancellations within that window are non-refundable.
What should I bring?
Bring comfortable shoes for walking, and consider earbuds or headphones for the audio guides. No mention of a need for special gear.
Is this experience suitable for children?
The tour is most suitable for most travelers, but very cultraphobic individuals might prefer to avoid confined underground spaces, as suggested by some reviews.
How far in advance should I book?
Most bookings are made about 57 days ahead, indicating good availability and allowing planning for most schedules.