Treasure Hunt
across Nantes.

A corporate treasure hunt in Nantes takes place in most of the city's neighbourhoods. The most popular areas are the Île de Nantes, with the giant Elephant of Les Machines de l'Île, Le Lieu Unique and the Hangar à bananes, as well as the Château des Ducs de Bretagne and its ramparts right in the city centre. Happy Unity has ready-to-use routes in these areas and can also design a rally from the Talensac neighbourhood to Île Feydeau, or directly within your Nantes premises.

Yes. Our indoor routes take over the Nantes History Museum, located in the Château des Ducs de Bretagne, as well as the Nantes Museum of Arts and its painting collections. Teams solve observation riddles in front of artworks and historical rooms, sheltered from the weather. It's the ideal format to combine culture, Breton heritage, and cohesion during a seminar in Nantes.

After an on-site briefing, your colleagues are divided into teams of 4 to 8 people and receive a tablet (or use their smartphone). They then follow a Nantes itinerary punctuated by riddles, photo challenges, and observation tasks, geolocated by the Indiana app, from the Elephant of Les Machines de l'Île to the moats of the Château des Ducs de Bretagne. Points accumulate throughout the route before a final ranking and, if you wish, a prize-giving ceremony. A Happy Unity facilitator oversees the entire event.

Our Nantes treasure hunts adapt equally well to a dozen colleagues or several hundred participants divided into simultaneous teams. Thanks to the Indiana app's live dashboard, we multiply control points between the Île de Nantes and the historic centre to avoid congestion and maintain a smooth pace, accommodating up to 5,000 people for very large events.

The weather will not compromise your Nantes event. Each outdoor route has an indoor Plan B: switching to the Nantes History Museum at the Château des Ducs de Bretagne, the covered Nef des Machines, or your own premises. The decision is usually made 24 hours beforehand, and the Indiana app instantly reloads the backup route, without changing anything about your day's organisation.

Yes. Our Nantes scenarios prioritise observation, reflection, and cooperation rather than physical performance. The challenges are varied so that everyone can contribute their skills, regardless of age or role. Routes can be adjusted for accessibility constraints: the Île de Nantes, flat and largely pedestrianised, is particularly well-suited for mixed groups.

Absolutely. We rewrite the scenario around your brand, your values, a product launch, or an internal message, gladly drawing inspiration from the imagination of Jules Verne, so dear to the city. Riddles, challenges, visuals, and prize-giving are adapted, and the route can connect places that are important to your company (your headquarters, a seminar venue on the Île de Nantes, a symbolic monument) for a unique experience.

It depends on your objective. To discover the creative city, opt for a geolocated urban rally on the Île de Nantes or around the Château des Ducs de Bretagne. For a seminar sheltered from the weather, prefer a museum format or the more dynamic City Express. For a large group, the multi-team format with real-time ranking is ideal, and for a gourmet experience, the Rallye Gourmand connects the best Nantes addresses, from Muscadet to Gâteau Nantais. Our project managers will guide you based on the number of participants and available time.

A route generally lasts between 1h30 and 2h30, including briefing and final ranking. This duration adjusts to your programme: a short City Express version for a half-day seminar, or a longer format combined with lunch by the Loire or an evening event on the Île de Nantes.

Everything is provided. Your teams play via our Indiana app, on the tablets we provide or on their smartphones. No complex installation: the app geolocates teams in Nantes, triggers riddles at the correct location, and automatically calculates the ranking. You don't need to prepare anything technical.

Yes, this is a very popular format in Nantes. The Rallye Gourmand connects the best addresses and local flavours, from Talensac market to regional specialities like Muscadet and Gâteau Nantais. Between riddles, your teams take tasting breaks that punctuate the route and enhance conviviality, all while discovering the Nantes way of life.

For over 20 years, Happy Unity has been designing team building experiences and knows the Nantes area perfectly. We master reconnaissance, authorisations, and city logistics, from the smallest group to events for several thousand people. A dedicated project manager will support you from conception to facilitation, with our in-house developed Indiana app for a seamless and 100% customisable experience.