
San Clemente Underground and Basilica Semi Private Tour
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September 2026
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Who is going?
Adults
Age 13 and over
Children
Age 12 and under
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Free cancellation up to 24 hours before. Same price on Viator, Outty earns a commission.
Traveler rating
5.0/5
Based on 1 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is San Clemente Underground and Basilica Semi Private Tour worth booking?
San Clemente Underground and Basilica Semi Private Tour is a 1.5-hour experience in Rome, Italy, from $70 per person. It scores 50 out of 100 on the Outty Ranking, which we label “Worth a Look”, based on a 5/5 rating across 1 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 50 / 100
- Rating
- 5/5 (1)
- Duration
- 1.5 hours
- From
- $70 per person
Step beneath the streets of Rome and discover nearly 2,000 years of history on this San Clemente Underground & Basilica Semi-Private Tour. Begin inside the magnificent 12th-century Basilica of San Clemente, famous for i
What you get
- Government fees
- Admission fees
- guided tour
About this experience
Step beneath the streets of Rome and discover nearly 2,000 years of history on this San Clemente Underground & Basilica Semi-Private Tour. Begin inside the magnificent 12th-century Basilica of San Clemente, famous for its dazzling golden apse mosaic and medieval artwork. Descend to the remarkably preserved 4th-century Early Christian basilica, then continue deeper into the remains of an ancient Roman neighborhood dating back to the 1st century AD. Walk through ancient streets, admire original frescoes, discover a former Roman residence, and visit one of the world's best-preserved Mithraic temples while your guide reveals the fascinating transformation of Rome from a pagan empire to the center of Christianity. With a maximum of 10 participants, this semi-private tour offers a relaxed atmosphere, personalized tour, and plenty of opportunities to ask questionsperfect for travelers looking to experience one of Rome's most captivating hidden gems away from the crowds.
What's included
Included
- Government fees
- Admission fees
- guided tour
Not included
- Bottled water
- Meals
- Private transportation
What you'll see and do
Basilica of San Clemente
Step inside the magnificent 12th-century Basilica of San Clemente, one of Rome's finest medieval churches, and admire its glittering golden apse mosaic, Cosmatesque marble floor, and beautiful frescoes. Descend into the 4th-century Early Christian basilica, one of Rome's earliest public churches, where remarkably preserved frescoes and the famous Legend of Saint Clement reveal the birth of Christian Rome. Continue deeper into the underground archaeological excavations to explore a 1st-century AD Roman neighborhood, including ancient streets, noble residences, and a natural spring that still flows today. Discover the remarkable Temple of Mithras (Mithraeum), one of the world's best-preserved sanctuaries dedicated to the mysterious Roman cult of Mithras. Travel through nearly 2,000 years of history as your expert guide uncovers the transformation of Rome from a pagan empire into the heart of Christianity.
90 minutes here · Admission included
Where it starts and ends
Meeting point
Rome
Your guide will wait for you in front of the entrance of the Basilica 15 min before.
Hotel pickup
No pickup: everyone meets at the start point.
Ends at
Your guide will wait for you in front of the entrance of the Basilica 15 min before.
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- en, it, sr
- Ticket
- Mobile Only
- Runs on
- Mon, Tue, Thu, Fri, Sat
- Group size
- Up to 10 travelers per booking
- Operated by
- Rome Tour
Know before you go
- Public transportation options are available nearby
- Not recommended for travelers with spinal injuries
- Travelers should have at least a moderate level of physical fitness
- clasutrofobic people
Photos






Traveler reviews
1 verified traveler reviews for San Clemente Underground and Basilica Semi Private Tour. Ratings and reviews provided by Viator and Tripadvisor.
San Clemente
Outstanding experience! Riccardo was very knowledgeable about the various historical events of the church and a super person. Loved it!
Response from the operator: Dear Philip,thank You so much for your wonderful review! We're delighted to hear that You enjoyed your San Clemente Underground and Basilica Semi-Private Tour. Riccardo is passionate about bringing Rome's incredible history to life, and he'll be thrilled to know his knowledge and enthusiasm made your visit so memorable. Exploring the fascinating underground levels of the Basilica of San Clemente, from ancient Roman buildings to one of the best-preserved Mithraic temples, is truly a unique experience, and we're glad you loved discovering this hidden gem with us. We hope to welcome You back soon for another unforgettable Rome guided tour and help you discover even more of the Eternal City's hidden treasures! Rosa
via Tripadvisor
Good to know
- Duration
- 1.5 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- All ages
- Availability
- Bookable today
- Runs on
- Mon, Tue, Thu, Fri, Sat
- Price range
- $70 to $80
- Hotel pickup
- No pickup, meet at start point
- Booked in 30 days
- 0
- Verdict
- Worth a Look
Why this scores 50
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
San Clemente Underground and Basilica Semi Private Tour: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Rome.
How much does San Clemente Underground and Basilica Semi Private Tour cost?
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Prices start at $70 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Rome usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.
How long does San Clemente Underground and Basilica Semi Private Tour take?
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Plan for about 1.5 hours from start to finish, not counting travel to the meeting point. Most travelers leave another 30 minutes on either side so the rest of the day in Rome is not rushed.
Is San Clemente Underground and Basilica Semi Private Tour worth it?
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It holds an Outty Ranking of 50 out of 100, which we label "Worth a Look". That score blends traveler sentiment (5/5 across 1 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable last minute in Rome, and how flexible the cancellation terms are.
Can I cancel or reschedule San Clemente Underground and Basilica Semi Private Tour?
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Yes. Cancel free up to 24 hours before the start time for a full refund. Inside that window the booking is non-refundable, and no-shows are not refunded.
Is San Clemente Underground and Basilica Semi Private Tour suitable for kids and families?
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Yes, all ages are welcome. Families should still weigh the 1.5-hour running time, and strollers are easier on the earlier, quieter departures.
How far in advance should I book San Clemente Underground and Basilica Semi Private Tour?
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Around 0 people booked this in the last 30 days, so popular slots go early. Two to three weeks ahead is comfortable in shoulder season, while summer weekends and holidays in Rome can sell out a month out. Same-day spots do open up when other travelers cancel, so it is worth checking if you are already in town.
What should I bring or wear?
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Bring photo ID, your booking confirmation on your phone, a refillable water bottle and comfortable shoes. Dress for the weather in Rome and add a light layer if any part of the 1.5-hour experience runs outdoors or after sunset.
Where does San Clemente Underground and Basilica Semi Private Tour start and how do I get there?
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The exact meeting point and directions are on your voucher once you book, and they sit in central Rome within reach of public transport. Arrive 15 minutes early: late arrivals are treated as no-shows by most operators.
What are the best things to do in Rome?
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Rome runs on skip-the-line access. The Colosseum underground, the Vatican before opening, and the catacombs south of the walls all require a licensed operator, and the price gap between the good ones and the rest is smaller than you would expect. We rank by guide credentials, group size and how reliably the promised access actually materialises. On Outty we rank every Rome experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include Rome Pasta and Tiramisu Class: Ravioli, Fettuccine & Fine Wine 5*, Pasta Making & Wine Tasting with Dinner in Frascati from Rome, Rome: Pizza & Tiramisu or Gelato Class with Flowing Fine Wine 5*. The city page groups everything into most popular, highest reviewed, last minute and family-friendly so you can build a day around what actually delivers.
When is the best time to visit Rome?
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April, May, September and October. August is hot and half the city is shut. Booking patterns follow the same curve: prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.
How many days do you need in Rome?
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Three full days covers the headline sights without sprinting. A workable rhythm is one anchor experience each morning, such as this one, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.
Do I book through Outty or through the operator?
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Outty ranks and explains the experiences, then hands you to Viator to complete the booking with the operator directly. The price is the same as booking on Viator yourself, and Outty earns an affiliate commission on the referral, which is how the rankings stay free to read.
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