Simple, effective, budget under control
€85–130
20 to 200 people- Study day, 30–80 people
- Team kick-off




Nausicaá, the medieval upper town, the cliffs of the Côte d'Opale: Happy Unity organises your seminar facing the English Channel. 1h30 from Paris, 1h from Lille. An unforgettable breath of fresh air for your teams.
















































SEMINAR FORMATS IN BOULOGNE-SUR-MER
From an executive committee in the medieval old town to a kick-off event for 400 people at the Palais des Congrès, every format benefits from Nausicaá, the cliffs of the Deux Caps, and France's premier fishing port.
8 FORMATS
Team cohesion · 1–2 days
Re-establish connections, integrate new profiles, and foster team spirit. This format refocuses the team on what truly matters: getting to know (or re-acquainting with) each other, building trust, and moving forward together.
WHO IT'S FOR
Growing teams, post-recruitment, service mergers
SAMPLE SCHEDULE
ORCHESTRATION IN BOULOGNE-SUR-MER
We frame every link from Boulogne-sur-Mer: Nausicaá privatisation, venue scouting, activities on the capes, and maritime catering, all without you having to manage the logistics. Local flavour permeates everything, from the morning fish auction to Bouchot mussels served facing the English Channel.

Event Expert
A dedicated Event Expert and their team, easy to reach, who know your project inside out. Reverse schedule from D-60, backup plan, on-the-day management.
1 Expert
per project

Venues
Nausicaá available for private hire, the old town's château-museum, 4-star seafront hotels, Hardelot Château nestled between forest and golf, or Le Touquet's Art Deco villas: the setting adjusts to your desired atmosphere.
200+
partner venues

Catering
Caterers with character, bespoke kitchen brigades, local producers. From the seminar brunch to the gala dinner, we create a table that leaves its mark.
150+
partner caterers

Accommodation
4- and 5-star hotels, private villas, characterful country houses. Single rooms by default, rooming handled from A to Z.
1,200+
room nights a year

Logistics
Transport, security, welcome, event management, technical: every ancillary service is run by our teams. You arrive, your employees are looked after.
All-inclusive
5 services

Team building
A catalogue of 100+ tried-and-tested activities, and a creative team that designs bespoke. Surprise choir, giant quiz, live DJ.
100+ activities
+ bespoke
SEMINAR VENUES & NEIGHBOURHOODS IN BOULOGNE-SUR-MER
From Nausicaá to the dunes of Le Touquet, each area has its own character. We help you choose the setting that best serves your objective and your group.
Iconic · 20–500 peopleEurope's largest aquarium
Boulogne's jewel: Nausicaá can be privatised for gala evenings amidst sharks and jellyfish. The seafront and its 4-star hotels offer breathtaking views of the English Channel, accommodating up to 500 people.
Prestige · HistoricThe medieval enclosure overlooking the sea
The thirteenth-century medieval enclosure overlooks the sea with its château-museum and belfry. Heritage spaces available for private hire for an exceptional dinner or an executive committee seeking character.
Nature · OutdoorThe chalk cliffs facing England
The Grand Site des Deux Caps unveils chalk cliffs and coastal paths facing England. A premium outdoor setting for a nature and wellness seminar, combining hiking and kitesurfing.
Residential · 10–150 peopleThe château between forest and golf
Between forest and sea, this charming village brings together a private hire château, golf hotels, and preserved dunes. The ideal setting for a peaceful, green residential seminar, just 15 minutes from Boulogne.
Prestige · AuthenticThe medieval city dear to Victor Hugo
Victor Hugo's medieval city, 30 minutes from Boulogne, boasts sixteenth-century ramparts and Michelin-starred restaurants. A timeless atmosphere for an executive committee (CODIR) meeting or a premium incentive for a small group.
Luxury · ResortThe chic resort of the Roaring Twenties
The chic resort of the Roaring Twenties offers exceptional hotels, Art Deco villas, and a legendary golf course. For a high-end seminar that combines seaside prestige, beach, and gastronomy.
ACTIVITIES & TEAM BUILDING
A gala evening amidst the sharks at Nausicaá, a fishermen's rally on the harbour, a hike on the headlands, or kitesurfing initiation facing England: our activities are unique to the Opal Coast. We manage certified instructors, suppliers, and group logistics.
Olympics
See the activities
Mystery games
See the activities
Trails & rallies
See the activities
CSR & Wellbeing
See the activities
Construction
See the activities
Quiz & TV games
See the activities
Casino & Stalls
See the activities
Creativity
See the activities
Culinary
See the activities
Music & Dance
See the activities
200+ PARTNER VENUES · 3 TIERS
The Opal Coast offers very competitive off-season rates, from the Château d'Hardelot to the Barrière palaces in Le Touquet, less than 2 hours from Paris and 1 hour from Lille.
Simple, effective, budget under control
€85–130
20 to 200 peopleSeminar venues ready to go: well organised and fully equipped
€145–220
50 to 500 peopleTruly exceptional, with the character that leaves its mark
€280–650
30 to 800 peopleWHY BOULOGNE
Boulogne-sur-Mer combines the energy of France's largest fishing port, a remarkable medieval heritage and spectacular natural spaces. A complete change of scenery less than 2h from Paris.
Europe's largest aquarium, available for private hire for unique gala evenings. Boulogne port, France's leading fishing port, offers authentic maritime team building experiences, unique in France.
4-star hotels by the sea, a medieval upper town available for private hire, Belle Époque villas in Le Touquet, Hardelot castles, reception rooms facing the cliffs: varied settings for all formats and atmospheres.
Bouchot mussels, lobster, fresh fish from the market, artisanal Opale beers: a generous and authentic table. High-calibre local caterers and Michelin-starred restaurants by the sea.
Cap Gris-Nez and Cap Blanc-Nez, classified as a Grand Site de France: spectacular cliffs, coastal paths, premium outdoor activities. For seminars that combine strategic thinking and natural rejuvenation.
Tell us your group size, your date and what you want to achieve: your Event Expert sends you a costed proposal within 24 hours. Free, with no commitment. Prices in euros, excl. VAT.
Indicative pricing · the final price depends on the venue, the season and the options you choose
PLENARY ACTIVITIES IN BOULOGNE-SUR-MER
Boulogne's Palais des Congrès hosts your plenary sessions for up to 500 participants, and Nausicaá up to 1,500 for private evening events. We orchestrate keynotes, conventions, and highlights facing the sea. Between two talks, our seminar activities — from twenty minutes to three hours, set up in your room — get the group moving again.

Inspiring speakers, recognised experts, testimonies from business leaders. We suggest a line-up suited to your message and to your group's energy.

Leadership team facilitation, collective intelligence, co-creating a vision. Experienced facilitators who move difficult topics forward as a group.

Decision-making escape game, crisis simulation, business role play. Learning by doing: without the PowerPoint, and without the glazed look after 20 slides.

Opening ritual, icebreaker for senior leaders, memorable close. The right format for the 30 people who don't want to "do team building".

World Café, Design Thinking, Open Space, Liberating Structures. We facilitate the formats that bring out genuine collective intelligence.

An hour-long talk followed by a hands-on workshop. A format that doubles retention and halves passive time.
THE BOULOGNE SEMINAR GUIDE
The English Channel as your backdrop
Happy Unity organises corporate seminars in Boulogne-sur-Mer and across the entire Opal Coast. Over 200 partner venues include: Nausicaá (Europe's largest aquarium, available for private hire), the medieval old town, 4-star seafront hotels, Hardelot Château, Belle Époque villas in Le Touquet, and the 2-Michelin-star restaurant in Montreuil-sur-Mer. Exceptional settings for all formats, from an executive committee of 15 people to a convention of 400.
DIGITAL TOOLS FOR YOUR EVENT
Two tools designed for two different audiences: you, the organiser, and your participants.
FOR YOU, THE ORGANISER
A dedicated space that helps you organise your event with your Event Expert: from design to review.

FOR YOUR PARTICIPANTS
An app developed in-house by our own technical team, not rented from a third-party provider. 100% customisable to your brand and your programme.
MY SEMINAR
128 participants
KEY FEATURES
CLIENT AREA
DIGITAL APP
HOW DO WE WORK TOGETHER?
Advice only, co-piloting or fully turnkey: we adapt to your team and to the complexity of your seminar in Boulogne-sur-Mer.
Our method, your management.
We lay the foundations: brief, design, budget, supplier selection. You deliver with our method and our recommendations.
Can be tailored to your context
Fees from €720
· + suppliers
We handle everything upstream, you approve.
The most popular package: we take care of everything from A to Z before the day itself. Venue, activities, hotel, catering. You approve, we deliver.
Can be tailored to your context
Fees from €950
· + suppliers + supervision
You arrive. We've handled everything.
Everything in Co-pilot, plus full on-site presence on the day. Event management, welcome, guest flow, transport: you arrive at an event that runs like clockwork.
Can be tailored to your context
On quotation
· overall budget under control
THEY TRUST US
“Everything was simply perfect. Lucile, full of excellent advice, knows her profession, her services, and her providers inside out! It was all handled very smoothly with her fantastic team. In short, a seminar we won't forget and one I highly recommend. We were 70 people for a day with 3 key highlights.”
Thierry Larchier
Verified Google Review

“We chose Happy Unity to assist us with a team building activity as part of a seminar for 38 managers from our bank in Marseille. The proposed activity met our objectives and was a great success. A big well done to the entire team.”
Marie-Adeline Nittis
Verified Google Review

“I contacted Happy Unity for the organisation of a team building event during a seminar. Everything went perfectly from the very first exchanges. Communication and responses were smooth and fast. A very good experience. I highly recommend them.”
Fanny Legrand
Verified Google Review

BOULOGNE-SUR-MER SEMINAR FAQ
The Opal Coast offers a complete change of scenery by the sea, less than 2 hours from Paris and 1 hour from Lille, with one of France's most beautiful coastlines. Boulogne adds Nausicaá, Europe's largest aquarium, a medieval old town, and France's leading fishing port. Over 200 partner venues are listed, from the seafront to the cliffs of the Deux Caps, suitable for all seminar formats.
From Paris Gare du Nord, allow approximately 1h50 by train via Lille, which is 1h by TGV then 1h by TER to Boulogne. By car, Paris is 2h20 away via the A1 then A16, and Lille is 1h away. Calais-Dunkirk Airport is located 40 km to the north. We coordinate transfers for groups.
Yes: Nausicaá can be privatised for groups of 50 to 500 people, and up to 1,500 for an evening event. A cocktail reception among the sharks, a gala dinner in the themed galleries, and a nocturnal visit surrounded by 40,000 marine animals make for a spectacular evening. We are in direct contact with Nausicaá's events team for negotiation and logistics.
Boulogne is the most accessible and maritime, with Nausicaá, the port, and the old town. Hardelot focuses on calm, forests, golf, and its château, ideal for an immersive residential seminar. Le Touquet embodies Belle Époque prestige with its Barrière hotels and 45-hole golf course. Montreuil-sur-Mer charms with its medieval city and its Auberge de la Grenouillère, a 2-Michelin-star restaurant.
Yes: Boulogne's Palais des Congrès can host up to 500 people for plenary sessions, and Nausicaá up to 1,500 for private evening events. For large group accommodation, several 4-star hotels in Boulogne and Hardelot allow for blocking a significant number of rooms. We coordinate plenary sessions, accommodation, and evening events for a single stay.
The Opal Coast offers excellent off-season rates, from September to May. The budget depends on the chosen format, venue, number of participants, catering, accommodation, and activities, whether it's a day event without an overnight stay or a 2-day residential seminar in a 4-star seafront hotel in Boulogne, Hardelot, or Le Touquet. Value for money is one of the destination's major assets. After an initial discussion, we will provide you with a selection of venues and a detailed quote tailored to your objectives.
The gala evening at Nausicaá is the signature event of the Opal Coast. Additionally, there's the fishermen's rally on the port with fish auctions and marine knots, hiking on the Deux Caps trails, kitesurfing initiation facing England, or a tasting of Bouchot mussels and artisanal beers from the Opal Coast. We manage certified instructors and group logistics.
Yes, with seasonal adaptations. Kitesurfing and water sports are optimal from April to October, while hiking on the capes is magnificent in autumn and winter, with low light and sea spray. In any season, Nausicaá, the old town, and gourmet restaurants remain accessible, whatever the weather.
For nature and tranquillity, Hardelot Château, nestled between forest and golf, 15 minutes from Boulogne, offers an ideal residential setting. For refinement, Montreuil-sur-Mer and its Auberge de la Grenouillère, or the Art Deco villas and Barrière hotels in Le Touquet. The medieval old town and its château-museum are suitable for executive committees (CODIR) seeking character.

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1 rue de l'Union · Marquette-lez-Lille
6 rue Duret · 75016 Paris
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Happy Unity
Corporate events
Phone
01 79 75 15 16
Mon – Fri · 9 am – 7 pm (Paris)
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