Reviewed · PARIS WALKING TOURS

Paris: Treasure Hunt & Walking Tour “Marie Curie’s secret”

★ 4.5 · 4 reviews From $28 Operated by Mystery City · Bookable on GetYourGuide
Book on GetYourGuide →

Marie Curie’s secret weapon is the playful hook for this Paris walk. You meet at Play-In on Rue de Rivoli, pick up a backpack of physical game materials, then follow a map through the city center, solving puzzles along the way. The mission is a game scenario, not a claim about a real weapon.

I like two things here: the tactile props give you something to handle beyond a phone screen, and the puzzle format turns a city walk into a shared task for friends or family. One caveat: the historical storytelling may feel light if you want a detailed account of Paris or Curie’s life.

Key points to know

  • Start at Play-In, 59 Rue de Rivoli: Tell a shopkeeper you are there for the Mystery City Game and collect the kit.
  • Follow a treasure map through central Paris: The route includes city sights and monuments, but no exact list of stops is provided.
  • Solve puzzles with physical materials: Maps, books, boxes, and tools are part of the game, which is not app-based.
  • Play at your own pace or compete: The private format suits groups who want to work together or race one another.
  • Plan for about two hours: You finish back at the starting point, with food, drinks, and transport to the start not included.

Start the mission at Play-In on Rue de Rivoli

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - Start the mission at Play-In on Rue de Rivoli

The game begins at Play-In, 59 Rue de Rivoli, in central Paris. Tell one of the shopkeepers you are there to play the Mystery City Game, and they will give you the materials needed to start. The activity uses a chat with a French soldier to explain how to pick up the backpack and introduce the mission.

That opening gives the walk a story before you set off. In the game’s setup, soldiers are leaving Paris for the battlefield, and your group has a special assignment: find a secret weapon associated with Marie Curie. Treat this as an imaginative escape-game premise. The experience also includes true stories about the city, but the mission itself is not presented as a historical event.

No guide’s personal name is provided. The host or greeter speaks French or English, and the game is available in both languages. Since it is a private group activity, you can keep the outing among your own party rather than joining a larger group of strangers.

Follow a map through central Paris

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - Follow a map through central Paris

Once you have the backpack, the treasure map leads you on foot through the Paris city center. The route is designed to take in top attractions and monuments while directing you toward less obvious spots where puzzles help move the story forward. That combination is the point: you are not simply walking from one famous façade to another, but using the city as the setting for a shared challenge.

The exact stops are not specified, so I would not book this expecting a guaranteed visit to a particular monument or a fixed list of landmarks. If you have a must-see site in mind, check with the provider before booking. What is clear is that the walk includes major city sights and secret places discovered along the puzzle route.

At two hours, the activity can fit into a day with other plans. It is also a way to get oriented while exploring, though it is not a substitute for a detailed guided tour if you want an expert explanation at each stop. You will spend time solving clues, so the pace may feel different from a standard sightseeing walk. That is an advantage if your group likes games, and a trade-off if you want to cover as many landmarks as possible.

Work the clues with real maps, books, and tools

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - Work the clues with real maps, books, and tools

The game comes with a backpack of physical materials: treasure maps, boxes, books, and tools. You do not need to rely on an app to play. The tangible kit gives the puzzles a hands-on feel, and it makes the activity easier to share around a group: one person can study a map while another works through a clue or handles an object.

The props are one of the strongest reasons to choose this over a phone-based city game. You are not just looking at a screen while passing through Paris. The materials give your group a reason to pause, discuss possibilities, and work out what to do next. A puzzle rally is a good fit for people who enjoy figuring things out together, though anyone hoping for a purely guided stroll should know that solving clues is central to the outing.

You can play at your own pace or make it competitive. That flexibility helps the game work for different kinds of groups. If you are with friends who like a little rivalry, you can turn the clues into a race. If you are with children or prefer a relaxed outing, there is room to take your time rather than treat every puzzle as a timed test.

Hear city stories, with Marie Curie as the thread

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - Hear city stories, with Marie Curie as the thread

The story gives the route a clear purpose: find the secret weapon left behind by France’s most famous scientist. Marie Curie is the narrative thread that links the game’s mission to the city walk. Along the way, the activity includes true stories from Paris’s past, adding context to the places you encounter.

It is worth setting expectations about the balance between play and history. This is first an outdoor escape game, not a lecture or a deep biography of Curie. The story and puzzles are meant to keep the walk moving. If you want lots of dates, historical detail, and extended explanations at each stop, you may find the amount of context limited.

That distinction matters because the experience promises both a game and historical material. The city stories are a useful extra, but the strongest draw is the combination of map-following, props, puzzles, and sightseeing. Go for a playful way to explore, not for a specialist history tour.

More tours and experiences in Paris:

Make it work for children, friends, or a party

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - Make it work for children, friends, or a party

The game is described as suitable for friends, families, and parties. Its mix of visual clues, objects, and group problem-solving can be especially appealing when you want children to take part in sightseeing rather than simply follow adults from one stop to the next. Families with children aged six and ten have enjoyed the challenges, including finding sculptures and solving puzzles. That gives a helpful indication of its family appeal, but children’s interests and patience vary.

For adults, the format can suit a weekend outing, a holiday activity, or a bachelorette party. The private group setup lets you keep the experience focused on your own friends or family. You can make it light and collaborative, or add some competition if that fits your group.

Consider your group’s preferred pace before booking. A puzzle activity works best when people are willing to stop, read clues, and talk through ideas. If part of your party mainly wants a brisk walk and uninterrupted sightseeing, the game may feel like a detour. If everyone enjoys a shared challenge, the pauses become part of the fun.

Is $28 a fair price for two hours?

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - Is $28 a fair price for two hours?

At $28 per person, the price covers the game materials and the two-hour activity. You are paying for a prepared puzzle route, a backpack of physical props, and a structured way to explore central Paris. That can be good value for a group that wants an activity rather than a conventional guided walk, especially if you make use of the chance to play together at your own pace.

The value is less obvious if you are mostly looking for historical commentary or a named guide who explains every landmark. The game’s main product is the interactive route, not a long-form city tour. Food, drinks, and transport to Rue de Rivoli are extra, so include those in your day’s budget.

The activity is offered as a private group, and booking allows you to reserve without paying immediately. You can cancel up to 24 hours in advance for a full refund. Starting times depend on availability, so check the date and time that suit your plans.

Return to Rue de Rivoli when the game ends

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - Return to Rue de Rivoli when the game ends

The activity ends back at the meeting point. That is practical if you are planning the rest of your day around central Paris, since you do not need to arrange transport from a separate finish location. You will need to make your own way to Play-In at the start, as transport there is not included.

The game takes about two hours, but it is sensible to leave a little room around that slot for getting to the shop and continuing your day afterward. Since the activity can be played at your own pace, your group’s approach to the puzzles may affect how quickly you move through the route. The stated duration is a useful planning guide, not a reason to rush every clue.

Should you book this Paris treasure hunt?

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - Should you book this Paris treasure hunt?

Book it if you want a two-hour city walk with a purpose, enjoy puzzles, and like the idea of handling maps and props instead of following an app. It is particularly well suited to families, friends, and private groups looking for a shared activity that mixes sightseeing with light roleplay.

Skip it if your main priority is a detailed guided history tour, a guaranteed list of specific landmarks, or a walk with little stopping and problem-solving. The historical material is part of the outing, but the game is its center. For the right group, that is a clever way to make a familiar sightseeing day more involving. For a history-focused visit, choose a tour built around extended interpretation instead.

FAQ

Paris: Treasure Hunt & Walking Tour "Marie Curie's secret" - FAQ

How long does the treasure hunt last?

The activity lasts about two hours. You can play at your own pace, so your group’s speed through the puzzles may affect the timing.

Where does the game start?

Meet at Play-In, 59 Rue de Rivoli, in Paris. Tell a shopkeeper you are there for the Mystery City Game.

Where does the activity end?

It ends back at the meeting point, Play-In on Rue de Rivoli.

What languages are available?

The game is available in French and English. The host or greeter also speaks French and English.

Is this an app-based game?

No. The game uses physical materials, including treasure maps, books, boxes, and tools.

What materials are included?

You receive treasure maps, boxes, and tools for the game. True stories about the city are also included.

Is the activity private?

Yes. It is offered as a private group activity.

Can we play at our own pace?

Yes. You can play at your own pace or make the game competitive.

Is the game suitable for families?

It is described as suitable for families. Children aged six and ten have enjoyed solving puzzles and finding sculptures during the activity.

Are food and transport included?

No. Food and drinks, as well as transport to the starting point, are not included.

More like this

Paris Walking Tours, compared.

The full Paris Walking Tours list →
Paris Top Sights Half Day Walking Tour with a Fun Guide
★★★★★★★★★★5.0· 2,893 reviews· from $76

Paris Top Sights Half Day Walking Tour with a Fun Guide

Read our review →
Montmartre Hidden Gems and Scenic Highlights Walking Tour
★★★★★★★★★★5.0· 2,684 reviews· from $38

Montmartre Hidden Gems and Scenic Highlights Walking Tour

Read our review →
Montmartre Hill French Gourmet Food and Wine Tasting Walking Tour
★★★★★★★★★★5.0· 2,588 reviews· from $145

Montmartre Hill French Gourmet Food and Wine Tasting Walking Tour

Read our review →
Paris Île de la Cité and Notre-Dame Walking Tour With Crypt
★★★★★★★★★★5.0· 2,272 reviews· from $48

Paris Île de la Cité and Notre-Dame Walking Tour With Crypt

Read our review →
Montmartre Cheese, Wine & Pastry Guided Walking Tour
★★★★★★★★★★4.8· 2,255 reviews· from $127

Montmartre Cheese, Wine & Pastry Guided Walking Tour

Read our review →
Paris in a Day: Louvre or Orsay, Eiffel Tower, City Walk & Cruise
★★★★★★★★★★5.0· 1,956 reviews· from $157

Paris in a Day: Louvre or Orsay, Eiffel Tower, City Walk & Cruise

Read our review →
Montmartre Highlights Walking Tour with a Local Guide
★★★★★★★★★★4.9· 1,668 reviews· from $34

Montmartre Highlights Walking Tour with a Local Guide

Read our review →
Paris City Center Free Walking Tour (Tip-Based)
★★★★★★★★★★5.0· 1,340 reviews

Paris City Center Free Walking Tour (Tip-Based)

Read our review →

Browse the lists this tour appears in

Scroll to Top

Wander further in Paris

Pick a landmark, a quarter or a table.