Exploring Rome often means marveling at its iconic landmarks like the Trevi Fountain and the Spanish Steps. But what if you could see a different side of these famous sites—one hidden beneath the streets? That’s exactly what this small-group tour offers, giving you an intimate peek into the ancient water system that helped shape the Eternal City.
We love how this tour blends historical storytelling, underground exploration, and lesser-known gems—all packed into just two hours. The personalized vibe with no more than 12 people means you get ample time to ask questions and soak in the details. Plus, the opportunity to stand feet away from flowing water inside Roman aqueducts is pretty special.
One thing to consider is that the tour involves walking and some underground exploration, so it’s best suited for those comfortable with light physical activity and enclosed spaces. If you’re a history buff, a curious traveler, or someone who loves discovering the secrets behind the major attractions, this experience is a fantastic addition to your Rome itinerary.
Good To Know

- Intimate size ensures personalized attention and plenty of questions.
- Includes access to underground Roman aqueducts and water reservoirs.
- Focuses on water’s role in shaping Rome’s history and architecture.
- Guides are knowledgeable, often sharing fascinating anecdotes.
- Highlights lesser-known sites near the Trevi Fountain and Spanish Steps.
- Cost-effective at $61 per person, offering excellent value for the depth of insight.
Why This Tour Stands Out

If you’re eager to go beyond the surface of Rome’s most famous sights, this tour offers a fascinating behind-the-scenes look at how water powered and influenced the city’s development. While many travelers toss coins into the Trevi Fountain or climb the Spanish Steps without understanding their origins, this tour fills in the gaps with compelling stories and unseen views.
The small-group format is a real advantage, making the experience more engaging and allowing guides to tailor their stories. The underground visits are unique; you’ll get to see Roman aqueducts still carrying water, some dating back to 19 BC, which means you’re literally walking through the city’s ancient plumbing system.
Find more activities and experiences we've covered in Rome.
The Itinerary: A Closer Look

Starting Point: Piazza di Spagna
The tour kicks off at the famous Spanish Steps, where your guide will explain their name and history—something many visitors don’t know! For example, did you realize that the steps aren’t called after the nearby Spanish embassy but rather because they connect to the Trinità dei Monti church, which was once under Spanish control? Our guide, Frederica, shared this quirky detail, sparking a few laughs and lots of questions.
First Fountain & The Aqueducts
Next, you’ll visit the first fountain of the tour, which still receives water from an ancient Roman aqueduct built in 19 BC. Walking from here along the route of the underground aqueducts, you’ll see parts peeking through modern streets, making you appreciate how Rome’s past and present are intertwined.
Guides often highlight how the Romans engineered these aqueducts with incredible precision—some flowing underground for miles—to bring fresh water into the city. Several reviews mention how seeing water flowing through ancient pipes was a highlight: “It was very cool to go under the Trevi Fountain,” one reviewer said, highlighting how rare and special this experience is.
More Great Thing To Do NearbyUnderground Aqueducts & Water Reservoirs
One of the main drawcards is going underground twice to see the aqueducts up close. These visits give you a tangible sense of Roman engineering—standing inside a water channel that’s still active today is quite a thrill. The water reservoir, built over 2000 years ago, is another hidden gem you’ll explore, providing context about how Romans managed their water supply.
- Rome: Borghese Gallery Entry Ticket With Timed Entry
- Colosseum Underground, Arena Floor and Ancient Rome
- Rome: 2-Hour Golf Cart Sightseeing Tour at Night
- Rome: Pantheon Skip-the-Line Entry Ticket and Audio Guide
- Rome: Shuttle Bus Transfer to or From Ciampino Airport
- Rome: St. Peters Basilica, Dome Climb & Papal Tombs Tour
The Finale at Trevi Fountain
The tour culminates at the famous Trevi Fountain, but not before you gain an understanding of its water source and significance. While many visitors just marvel at the sculpture, this experience emphasizes the fountain’s role in the city’s water network and how it remains fed by the old aqueduct.
Off the Beaten Path: Hidden Gems
After the main stops, the tour veers away from crowds, leading to quieter corners and underground sites like the Vicus Caprarius, a hidden archaeological site where Roman ruins are surprisingly found inside a modern building—an unexpected sight that amazed reviewers. One guest wrote, “Very interesting history of the aqueducts of Rome. Very cool to go under the Trevi Fountain,” affirming how this can be a memorable, behind-the-scenes experience.
The Experience: What You Can Expect

Walking through Rome’s historic streets, you’ll get a sense of the city’s layered history. The pace is moderate, perfect for those who enjoy absorbing details without feeling rushed. The tour is rain or shine, so be prepared with an umbrella or hat if needed, especially since some underground sections can feel cool and damp.
Your guide, often Frederica or Sabrina, will share fascinating stories and insights—things you won’t find in guidebooks. For example, reviews mention guides being “very knowledgeable,” “passionate,” and eager to answer questions, which enhances the experience significantly.
The Underground Sections
Inside the aqueduct tunnels and reservoirs, you’ll see water still flowing, highlighting how Roman engineering has stood the test of time. These sites are small but impactful, giving a rare chance to stand inside a part of history most travelers never get to see.
Additional Highlights
- Less crowded areas: The tour avoids the crush of the main tourist spots, making for a more relaxed experience.
- Educational focus: Not just sightseeing, but understanding how water shaped ancient Rome.
- Photo opportunities: Expect to capture stunning shots of ancient ruins and modern streets blending seamlessly.
Price & Value
At $61 per person, this tour offers remarkable value. Most of the cost covers entry to underground sites and a guided experience, which is often better than trying to explore these sites alone and risking missing key stories.
Considering how most major Rome attractions charge extra for in-depth access or guides, this experience feels well-priced for what you receive. Plus, the small-group setting ensures more interaction and personalized attention—a factor many travelers find worth the investment.
Practical Tips
- Wear comfortable walking shoes, as the tour involves some walking and exploring underground.
- Be prepared for some enclosed spaces; if you’re claustrophobic, ask the guide about the size of the underground sections.
- Arrival is at the entrance of the Diesel store in Piazza di Spagna, with guides holding a Live Virtual Guide sign.
- No transportation is included, so plan your route to the meeting point. It’s easily accessible on foot from most central Rome locations.
- The tour is rain or shine, so dress accordingly.
Who Is This Tour For?
This experience is perfect for history lovers, architecture aficionados, or anyone curious about Rome’s hidden infrastructure. It’s especially suited for visitors who want a deeper understanding of the city’s water system and enjoy small, interactive tours. If you’re traveling with kids or prefer not to venture underground, check with the provider beforehand.
FAQ
Is this tour suitable for children?
Most likely, yes, but it depends on the child’s comfort with underground spaces and walking. Check with the provider if you’re unsure.
How long is the tour?
The tour lasts approximately 2 hours, providing a balanced mix of walking, underground exploration, and storytelling.
Are there any restrictions for underground sites?
Guides will inform you if there are any limitations, but generally, the underground sections are accessible to most participants.
Is the tour accessible for people with mobility issues?
Since the tour involves walking and underground sections, accessibility could be limited. Contact the provider for specific concerns.
What should I wear?
Comfortable walking shoes are recommended. Bring an umbrella or hat if rain is forecast.
Can I cancel the tour?
Yes, cancellations are free if made up to 24 hours in advance.
Does it include transportation?
No, transportation to the meeting point is not included.
Are guides available in languages other than English?
This tour is offered in English only.
What makes this tour different from other Rome sightseeing tours?
It focuses on Rome’s ancient waterworks, providing underground access and detailed stories, which many standard tours don’t include.
For those who love uncovering the lesser-seen layers of a city as iconic as Rome, this tour offers a rare glimpse into the ancient aqueduct system that supplied the city’s water for centuries. The combination of underground exploration, engaging guides, and hidden ruins makes it a compelling choice for travelers seeking a deeper connection with Rome’s history.
While it’s not suitable for everyone—especially those with mobility issues or claustrophobia—the experience offers value, insight, and a dash of adventure. If you’re after an authentic, educational, and memorable way to understand Rome beyond its surface, this tour should definitely be on your list.
In summary, this small-group tour is ideal for history enthusiasts, curious explorers, and anyone interested in the engineering marvels of ancient Rome. Its focus on water infrastructure adds a unique dimension to your visit, making it a fascinating, educational journey into the city’s soul.
You can check if your dates are available here:More Tour Reviews in Rome
- Romes Exclusive Wine Tasting: Sip Near the Colosseum!
- Rome: Small Group (12 pax) Colosseum, Forum & Palatine Tour
- Rome: Sex, Love, and Scandal Nightlife Tour in Ancient Rome
- Rome: Colosseum & Roman forum self tour with audio guide app
- Rome Secrets: Dark History & Tasty Bites Tour
- Rome: Secrets Beneath San Clemente & the Pagan Underground
Looking for something different? Other Rome activities we've written about
- Romes Exclusive Wine Tasting: Sip Near the Colosseum!
- Rome: Small Group (12 pax) Colosseum, Forum & Palatine Tour
- Rome: Sex, Love, and Scandal Nightlife Tour in Ancient Rome
- Rome: Colosseum & Roman forum self tour with audio guide app
- Rome Secrets: Dark History & Tasty Bites Tour
- Rome: Secrets Beneath San Clemente & the Pagan Underground
- Rome: Sculpture Workshop with Brunch or Aperitivo
- Rome: Skip the Line ticket to Museum MAXXI
- Rome: Sistine Chapel, Vatican Museums Entry, & Audioguide
- Rome: Spanish Steps & Hidden Gems Private Photoshoot
- Rome: St. Mary Major Basilica Dome Access & Underground Tour
- Rome: Small Group Walking Tour in English or Spanish
