City Balloon Tours
Language $Currency
Login / Sign up
Bookings
Bookings
Wallet
$0.00
Wishlists
Wishlists
Rewards Rewards
Gift cards
Profile
Help Center
Language
Log out
Things To Do Things To Do Top 10 Top 10 City Tours City Tours Swamp Tours Swamp Tours Steamboat Natchez Steamboat Natchez Gift Cards Gift Cards Rewards Rewards Groups Groups FAQ FAQ Contact Contact
Start your search
Change your search
Place or activity
Select Dates
You booked this experience
You're departing on
Google Calendar
Apple Calendar
Microsoft Outlook
Make your trip unforgettable

Underground Rome: San Clemente Basilica Tour

8 Reviews 4.50 out of 5 stars Based on 8 reviews collected by City Balloon Tours and TripAdvisor | Rome, Italy
Book online or call us

from $63.67 per person

Lowest Price Guarantee
An ancient, pagan temple hidden under the archaeological lasagna of Rome
"new" 12th century basilica boasts some impressive art works including ancient mosaics and frescoes
Underground Rome: San Clemente Basilica Tour Image 3
Underground Rome: San Clemente Basilica Tour Image 4
Underground Rome: San Clemente Basilica Tour Image 5
Don't miss out!
On average, this is booked 25 (0) days in advance.
3 hours (approx.)
Mobile ticket
Offered in: English
Instant confirmation

Overview

Explore Rome's underground on a small-group guided tour of hidden basilicas, medieval masterpieces, and ancient sanctuaries.

Meet your expert guide at the Basilica of San Clemente, near the Colosseum. Admire its magnificent 12th-century mosaics, then descend underground to discover an early Christian basilica and an ancient Roman temple.

Continue to the Basilica and Monastery of the Four Crowned Saints (Quattro Santi Coronati), a peaceful medieval sanctuary renowned for its extraordinary frescoes and historic architecture.

Conclude at the Archbasilica of St. John Lateran, the oldest papal basilica in the Western world. Discover its remarkable history and importance to Christianity.

With expert insights, explore how Roman civilization, religion, art, and architecture have evolved over 2,000 years.

Perfect for culturally curious travelers seeking an intimate alternative to Rome’s busiest attractions, this tour reveals treasures often overlooked by conventional itineraries.

What's Included

  • For peace of mind you will receive guide's name and phone number the night before the tour.
  • St. Clement's Basilica Admission Tickets
  • Small Group Guided Tour
  • Transportation not included
  • Food/Drinks not included
See 2 more

Meeting Location

Meeting point

Piazza di San Clemente
00184 Roma RM, Italy

Show on Google Maps

Detailed check-in instructions, including the exact address, are provided with your booking confirmation.

End point

Piazza San Giovanni In Laterano
00184 Roma RM, Italy

Your guided tour ends at San Giovanni in Laterano Cathedral.

What To Expect

Book Online

Our secure website provides real-time availability, instant confirmation, and free, no-hassle cancellations up to 24 hours before your tour begins.
Read more

Safe & secure Easy breezy Hassle‑free

Basilica of San Clemente

A true slice of Rome's Archaeological Lasagna, Saint Clement's Basilica has for centuries preserved ancient layers of Rome. Hidden far beneath the street level lies one of Italy's most important archaeological sites.
Read more

40 minutes Admission Ticket Included

Basilica e Monastero Agostiniano Santi Quattro Coronati

Your next stop is the Basilica and Monastery of the Four Crowned Saints (Quattro Santi Coronati). Explore the intricate details of this magnificent ancient church with your small group.
Read more

45 minutes Admission Ticket Free

Arcibasilica di San Giovanni in Laterano

Think Saint Peter's Basilica is the most important church in Rome? Well, think again. Follow your passionate guide to the last stop on this fascinating walking tour: Rome's Cathedral, Saint John in Lateran.
Read more

50 minutes Admission Ticket Free

Show 2 more stops

Additional Info

  • Confirmation is instant and will be received at time of booking
  • Public transportation options are available nearby
  • Not recommended for travellers who suffer from claustrophobia.
  • Suitable for all physical fitness levels
  • Infants and small children can ride in a pram or stroller
  • This tour/activity will have a maximum of 8 travelers

Frequently Asked Questions (7)

Q: What is the cancellation policy for the Underground Rome: San Clemente Basilica Tour?

A: You can cancel up to 24 hours in advance of the tour for a full refund. For a full refund, you must cancel at least 24 hours before the tour start time.If you cancel less than 24 hours before the tour start time, the amount you paid will not be refunded.Any changes made less than 24 hours before the tour start time will not be accepted.Cut-off times are based on the tour local time (CET).This tour requires a minimum number of travelers. If it’s canceled because the minimum isn’t met, you’ll be offered a different date/experience or a full refund. Read more Apr 2025

Cancellation Policy

You can cancel up to 24 hours in advance of the tour for a full refund.

Still have questions?

We're here to help.
Activity code: C-62570P71

Traveler Photos

Reviews

4.50
8 reviews

Average 4.50 out of 5 stars based on 8 traveler reviews collected by City Balloon Tours and partner sites such as Cool Destinations and TripAdvisor

5 stars
7
4 stars
0
3 stars
0
2 stars
0
1 star
1
Don't miss out!
On average, this is booked 25 (0) days in advance.
Rome Tours
Attractions
Guides
Calendar
View more

Similar Tours & Activities

Fiat 500 Vintage Private Tour, with a local photographer
5.0 (85)

Fiat 500 Vintage Private Tour, with a local photographer

Discover Rome in an authentic and stylish way aboard a vintage Fiat 500, exploring iconic landmarks and hidden streets away from the tourist crowds. This...

2 hours Free Cancellation
5.0 (85)
from
$126
Vatican Museums & Sistine Chapel Guided Tour
3.8 (10)

Vatican Museums & Sistine Chapel Guided Tour

• Priority entrance to the Vatican Museums with an official licensed guide • Explore the Sistine Chapel with clear and engaging explanations • Discover the...

2 hours 30 minutes
3.8 (10)
from
$160
Tivoli Vila D’Este Tour
Likely to Sell Out
Likely to Sell Out
5.0 (1)

Tivoli Vila D’Este Tour

Explore the stunning Villa d’Este, a UNESCO World Heritage Site and a jewel of Renaissance art and architecture. Situated in the charming town of Tivoli,...

1 hour Free Cancellation
5.0 (1)
from
$75
Rome to Florence: High-Speed Train Day Trip with Guided City Tour
4.1 (229)

Rome to Florence: High-Speed Train Day Trip with Guided City Tour

Starting either directly at Rome's Termini Railway Station or with a convenient hotel pick-up if you choose the premium option, you'll be whisked away on...

12 hours Hotel pickup offered Free Cancellation
4.1 (229)
from
$261
Fiat 500 Vintage Private Tour, with a local photographer

Discover Rome in an authentic and stylish way aboard a vintage Fiat 500, exploring iconic landmarks and hidden streets away from the tourist crowds. This …More

5.0 (85)

Fiat 500 Vintage Private Tour, with a local photographer

5.0 (85)

Discover Rome in an authentic and stylish way aboard a vintage Fiat 500, exploring iconic landmarks and hidden streets away from the tourist crowds. This...

2 hours Free Cancellation
5.0 (85)
from
$126
Vatican Museums & Sistine Chapel Guided Tour

• Priority entrance to the Vatican Museums with an official licensed guide • Explore the Sistine Chapel with clear and engaging explanations • Discover the …More

3.8 (10)

Vatican Museums & Sistine Chapel Guided Tour

3.8 (10)

• Priority entrance to the Vatican Museums with an official licensed guide • Explore the Sistine Chapel with clear and engaging explanations • Discover the...

2 hours 30 minutes
3.8 (10)
from
$160
Tivoli Vila D’Este Tour

Explore the stunning Villa d’Este, a UNESCO World Heritage Site and a jewel of Renaissance art and architecture. Situated in the charming town of Tivoli, …More

Likely to Sell Out
Likely to Sell Out
5.0 (1)

Tivoli Vila D’Este Tour

5.0 (1)

Explore the stunning Villa d’Este, a UNESCO World Heritage Site and a jewel of Renaissance art and architecture. Situated in the charming town of Tivoli,...

1 hour Free Cancellation
5.0 (1)
from
$75
Rome to Florence: High-Speed Train Day Trip with Guided City Tour

Starting either directly at Rome's Termini Railway Station or with a convenient hotel pick-up if you choose the premium option, you'll be whisked away on …More

4.1 (229)

Rome to Florence: High-Speed Train Day Trip with Guided City Tour

4.1 (229)

Starting either directly at Rome's Termini Railway Station or with a convenient hotel pick-up if you choose the premium option, you'll be whisked away on...

12 hours Hotel pickup offered Free Cancellation
4.1 (229)
from
$261

Travelers Who Bought This Tour Also Bought

Skip-the-Line Group Tour of the Vatican, Sistine Chapel & St. Peter's Basilica
Likely to Sell Out
Likely to Sell Out
4.8 (14,679)

Skip-the-Line Group Tour of the Vatican, Sistine Chapel & St. Peter's Basilica

A holiday in Rome without visiting the Vatican is like a day at the beach without swimming in the sea. See the best of the...

3 hours Free Cancellation
4.8 (14,679)
from
$21
Rome Pasta and Tiramisu Class: Ravioli, Fettuccine & Fine Wine 5*
Likely to Sell Out
Likely to Sell Out
5.0 (4,142)

Rome Pasta and Tiramisu Class: Ravioli, Fettuccine & Fine Wine 5*

Begin with learning how make tiramisù, following traditional recipes using all ingredients- mascarpone, eggs, coffee sugar and cocoa powder and tools needed. Following this, learn...

3 hours Free Cancellation
5.0 (4,142)
from
$33
Learn to Make Pasta & Tiramisu with Wine and Limoncello Included
Likely to Sell Out
Likely to Sell Out
4.9 (3,170)

Learn to Make Pasta & Tiramisu with Wine and Limoncello Included

Enjoy Fettuccine and Tiramisu cooking class in the heart of Rome! During this class you will learn how to make Fettuccine pasta from scratch and...

2 hours Free Cancellation
4.9 (3,170)
from
$56
Pizza Cooking Class in Rome - Near Piazza Navona
Likely to Sell Out
Likely to Sell Out
4.9 (1,479)

Pizza Cooking Class in Rome - Near Piazza Navona

Who can say no to Pizza? Especially for Italian pizza? We definitely can't! If you're like us, joining a pizza class in Rome should be...

2 hours Free Cancellation
4.9 (1,479)
from
$44
Skip-the-Line Group Tour of the Vatican, Sistine Chapel & St. Peter's Basilica

A holiday in Rome without visiting the Vatican is like a day at the beach without swimming in the sea. See the best of the …More

Likely to Sell Out
Likely to Sell Out
4.8 (14,679)

Skip-the-Line Group Tour of the Vatican, Sistine Chapel & St. Peter's Basilica

4.8 (14,679)

A holiday in Rome without visiting the Vatican is like a day at the beach without swimming in the sea. See the best of the...

3 hours Free Cancellation
4.8 (14,679)
from
$21
Rome Pasta and Tiramisu Class: Ravioli, Fettuccine & Fine Wine 5*

Begin with learning how make tiramisù, following traditional recipes using all ingredients- mascarpone, eggs, coffee sugar and cocoa powder and tools needed. Following this, learn …More

Likely to Sell Out
Likely to Sell Out
5.0 (4,142)

Rome Pasta and Tiramisu Class: Ravioli, Fettuccine & Fine Wine 5*

5.0 (4,142)

Begin with learning how make tiramisù, following traditional recipes using all ingredients- mascarpone, eggs, coffee sugar and cocoa powder and tools needed. Following this, learn...

3 hours Free Cancellation
5.0 (4,142)
from
$33
Learn to Make Pasta & Tiramisu with Wine and Limoncello Included

Enjoy Fettuccine and Tiramisu cooking class in the heart of Rome! During this class you will learn how to make Fettuccine pasta from scratch and …More

Likely to Sell Out
Likely to Sell Out
4.9 (3,170)

Learn to Make Pasta & Tiramisu with Wine and Limoncello Included

4.9 (3,170)

Enjoy Fettuccine and Tiramisu cooking class in the heart of Rome! During this class you will learn how to make Fettuccine pasta from scratch and...

2 hours Free Cancellation
4.9 (3,170)
from
$56
Pizza Cooking Class in Rome - Near Piazza Navona

Who can say no to Pizza? Especially for Italian pizza? We definitely can't! If you're like us, joining a pizza class in Rome should be …More

Likely to Sell Out
Likely to Sell Out
4.9 (1,479)

Pizza Cooking Class in Rome - Near Piazza Navona

4.9 (1,479)

Who can say no to Pizza? Especially for Italian pizza? We definitely can't! If you're like us, joining a pizza class in Rome should be...

2 hours Free Cancellation
4.9 (1,479)
from
$44

Frequently Asked Questions (7)

Activity name

The answers provided below were previously given in response to questions from City Balloon Tours customers.

Filter by:

Q: What is the cancellation policy for the Underground Rome: San Clemente Basilica Tour?
A:
You can cancel up to 24 hours in advance of the tour for a full refund.
  • For a full refund, you must cancel at least 24 hours before the tour start time.
  • If you cancel less than 24 hours before the tour start time, the amount you paid will not be refunded.
  • Any changes made less than 24 hours before the tour start time will not be accepted.
  • Cut-off times are based on the tour local time (CET).
  • This tour requires a minimum number of travelers. If it’s canceled because the minimum isn’t met, you’ll be offered a different date/experience or a full refund.
Apr 2025
Q: What's included in the price?
A:
The following is included:
  • For peace of mind you will receive guide's name and phone number the night before the tour.
  • St. Clement's Basilica Admission Tickets.
  • Small Group Guided Tour.
The following is NOT included:
  • Transportation not included.
  • Food/Drinks not included.
Apr 2025
Q: What is the minimum age for this tour?
A:

There is no minimum age for this tour, so bring your wee one along for an adventure. This tour requires at least one adult to accompany children..

Apr 2025
Q: My date is not available in the calendar, I am just checking to see if it is available?
A:

If a date or time is not listed on the calendar, it’s sold out or unavailable for another reason. Support cannot assist further if a date or time is not on the calendar.

If you find a date and time that works for you, book it NOW because things always sell out at this time of year.

Apr 2025
Q: Is this an accessible tour?
A:

Accessibility information for the Underground Rome: San Clemente Basilica Tour is as follows:

  • Public transportation options are available nearby
  • Not recommended for travellers who suffer from claustrophobia.
  • Suitable for all physical fitness levels
Apr 2025
Q: Where is the meeting point for this activity?
A:

Detailed check-in instructions – including meeting point address, Google map, and parking information – for Underground Rome: San Clemente Basilica Tour will be included in your confirmation email from City Balloon Tours. Please be sure to double and triple check your email address is correct at checkout so this important email makes its way to you!

 

 

Mar 2024
Q: How long does a refund take to reach my card, and can I get it faster?
A:

Once your refund is processed, it usually shows on your card statement within 5–10 business days. The exact timing depends on your bank or card issuer.

Want it sooner? When you cancel, choose Receive a refund to my wallet instead. The credit is in your Wallet straight away and is applied automatically at checkout on your next booking when you’re signed in with the same email. You can see your balance any time in My Wallet.

If you paid part of your booking with Wallet credit, that part always goes back to your Wallet. Trip protection isn’t refundable.

Oct 2026

What's Included

Activity name

  • For peace of mind you will receive guide's name and phone number the night before the tour.
  • St. Clement's Basilica Admission Tickets
  • Small Group Guided Tour
  • Transportation not included
  • Food/Drinks not included

Additional Info

Activity name

  • Confirmation is instant and will be received at time of booking
  • Public transportation options are available nearby
  • Not recommended for travellers who suffer from claustrophobia.
  • Suitable for all physical fitness levels
  • Infants and small children can ride in a pram or stroller
  • This tour/activity will have a maximum of 8 travelers

Report Product Issue

Activity name