The Paris Catacombs: What to Know Before You Go (Halloween Edition)
TW: Pictures of the catacombs will be used for explanation purposes during this blog.
Paris has no shortage of beautiful places to explore. But beneath the elegant boulevards, cafés, and monuments is a very different side of the city. Twenty meters below ground, the Paris Catacombs contain the remains of several million Parisians. If you're visiting Paris around Halloween, it is probably one of the most atmospheric places you can visit. But before you head underground expecting a haunted attraction, there are a few things you should know. The Catacombs aren't a Halloween theme park. They're a historic ossuary, a fascinating piece of Parisian history, and a genuinely unusual place to visit.
Here's everything you need to know before going, from tickets and opening hours to what to wear, how long the visit takes, and whether it's actually worth visiting around Halloween.
First: What Exactly Are the Paris Catacombs?
Despite their name, the Paris Catacombs aren't originally a cemetery. They're part of a vast network of former limestone quarries beneath Paris. As the city's cemeteries became overcrowded in the 18th century, authorities began transferring human remains underground. The first bones were moved into the former quarries in 1786, and the site eventually became the ossuary that visitors know today. The Catacombs officially opened to the public in 1809.
Today, the visitor route takes you through a small section of Paris's enormous underground network, ending in the ossuary where the bones of millions of former Parisians are arranged along the galleries. And yes: You really are walking among human remains. That is what makes the experience so different from a typical Paris attraction.
Are the Catacombs Actually Scary?
Here's the honest answer: They can be, but probably not in the way you're imagining. There are no actors jumping out at you, there isn't a haunted-house-style soundtrack, and the Catacombs aren't designed as a Halloween attraction. Instead, the atmosphere comes from the underground setting itself. It's dark, it’s cool, the passages are narrow, and eventually, you reach walls and structures made from actual human bones. The official site describes the Catacombs as being around 20 metres underground, with dim lighting, narrow passages, and uneven or slippery floors. So if you're looking for something genuinely atmospheric around Halloween, this is much more interesting than a manufactured scare.
The 2026 Catacombs Experience Is Different
If you've visited the Catacombs before, there's an important update. The site underwent a major renovation and reopened on April 8, 2026 with a new visitor route and redesigned exhibition experience. The renovation was intended to improve the presentation of the site's history while helping preserve the fragile ossuary. That means some older blog posts, TikToks, and travel guides may no longer accurately describe the current experience. So if you're visiting in 2026: Check the current official information before you go.
Where Are the Paris Catacombs?
The visitor entrance is at:
1 Avenue du Colonel Henri Rol-Tanguy, 75014 Paris
The easiest transport option is usually Denfert-Rochereau, served by Metro and RER B. One thing to remember: The entrance and exit are different. You enter at Avenue du Colonel Henri Rol-Tanguy and exit at 21 bis Avenue René-Coty, roughly 700 metres away from the entrance, so be aware that you'll come out somewhere else. You also have no phone service down there so don't base your plans on communicating via the phone.
How Long Does the Visit Take?
The official visitor circuit is approximately 1.5 kilometres and takes around one hour. That doesn't sound particularly long. But remember that you're also:
- Walking underground
- Going down 131 stairs
- Walking through narrow passages
- Stopping to read information
- Exploring the ossuary
- Climbing another 112 stairs to leave In total, there are 243 stairs involved in the visit. So don't plan your visit immediately before a major walking tour unless you're prepared for the extra exercise.
How Cold Are the Catacombs?
This is one of the things visitors often don't expect. The temperature underground stays around 14°C year-round, and the Catacombs can also be quite humid, so even if you're visiting Paris in October and the weather outside is mild, bring a layer. You don't need winter clothing, but a light jacket or sweater is a very good idea. And definitely wear comfortable shoes, since the floors can be uneven and slippery.
Can You Bring a Large Bag?
This is important. No. Suitcases and large bags aren't allowed inside the Catacombs. The current rules allow bags no larger than 40 × 30 ×20 cm, and they must be carried in front of you or by hand. There is no cloakroom, strollers are also not permitted. So if you're exploring Paris with luggage, don't assume you can leave it at the Catacombs. Plan ahead.
How Much Do the Catacombs Cost in 2026?
The current 2026 individual rates are:
- Adults: €31
- Reduced rate: €25
- Children aged 8–17: €15
- Children under 8: Free The audio guide is included with paid tickets. That makes the Catacombs more expensive than some of Paris's free attractions, so it's worth knowing what you're getting before you book. You can check all this information here.
Do You Need to Book in Advance?
Yes, the Catacombs recommend booking a timed ticket online, and tickets are released seven days in advance. Visitor numbers are limited, so popular times can sell out. This becomes particularly important around Halloween. If October 31 is part of your Paris itinerary, don't wait until the last minute and assume you'll be able to walk in. Book your time slot ahead of time here.
When Are the Catacombs Open?
The Catacombs are currently open: Tuesday–Sunday: 9:45 AM–8:30 PM Last admission is at 7:30 PM. They are closed on Mondays and certain public holidays, including January 1, May 1, and December 25. Importantly for an autumn itinerary, the Catacombs are open on November 1, All Saints' Day, unless it falls on a Monday. Read more useful information for your visit here.
Is Halloween Actually a Good Time to Visit?
Absolutely, if you enjoy atmosphere more than gimmicks. October adds something to the experience. You're already visiting a city associated with centuries of history, mystery, art, death, revolution, and dramatic stories. Then you descend underground and find yourself surrounded by an enormous historic ossuary. That said, remember that the Catacombs don't become a completely different attraction on October 31. It's still a museum and historic site first. If you're looking for a dedicated Halloween party, you'll need to look elsewhere, we mention some halloween events on our blog here. If you're looking for an unforgettable Halloween-season experience? The Catacombs are hard to beat.
Is It Suitable for Children?
This depends heavily on the child. The Catacombs are not a haunted attraction, but the subject matter is very real. You're looking at human remains and walking through an underground environment with low light and narrow passages. Children under 14 must be accompanied by an adult, according to the current visitor information. Before booking, think about whether your child will actually enjoy the experience. For some kids, it will be fascinating and for others, it may be unsettling, so make sure to ask before booking.
Who Should Avoid the Catacombs?
The site isn't suitable for everyone. Because of the stairs, narrow passages, uneven floors, and underground conditions, the official site says the visit is not wheelchair accessible and is not recommended for people with certain mobility limitations, claustrophobia, or cardiac or respiratory conditions. There are 131 stairs going down and 112 coming back up, so this isn't an attraction you can simply stroll through. If accessibility or health considerations are relevant to you, check the official visitor requirements before booking.
Can You Take Photos?
Yes, but there are rules. Photography for private use is permitted, but flash photography and tripods are not allowed. And there is one much more important rule: Do not touch the bones. The ossuary is a fragile historic site, and visitors are expected to treat the remains and surrounding structures with respect. Remember: This isn't a Halloween prop. These are the remains of real people.
What You Should NOT Do
There are a few obvious rules, but they're worth repeating.
- 🚫 Don't touch the bones
- 🚫 Don't eat or drink inside
- 🚫 Don't bring alcohol
- 🚫 Don't bring large bags
- 🚫 Don't use flash photography
- 🚫 Don't use tripods
- 🚫 Don't wander away from the visitor route The Catacombs are a protected historic site, not an underground playground.
What Makes the Catacombs So Fascinating?
It's not just the bones, it's the story of how Paris itself was built. The tunnels were created through centuries of quarrying beneath the city. Then the underground spaces became part of the solution to a serious problem above ground: Paris's overcrowded cemeteries. So the Catacombs connect several different chapters of the city's history: quarrying → urban expansion → public health → cemeteries → the ossuary → modern Paris That's why the experience is much more interesting when you know a little of the story beforehand. You're not simply walking through a room full of bones. You're walking through a piece of the city's history.
