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Uncover the encrypted logbook of Harlingen's Arctic whalers, hidden among the harbors and monuments. Decode their final secrets before a rival crew claims the lost route to untold riches.
📱 1 to 10 phones · 1 team per phone · Independent codes
In the 16th century, Harlingen's daring whalers set sail on the Witte Swaen and other vessels, chasing Arctic routes to Asia's riches through icy Nova Zembla
You are Barent Fockesz, the legendary whaling captain from Harlingen, returning from a successful campaign to Greenland in 1683.
Your mission: decipher a code left by a former
Dive into Harlingen's port, where tough Frisian captains of the Arctic whaling fleet set off to hunt the giants of the sea in the 17th century.
You're not just buying an escape game. You're carrying a living guide — historical anecdotes, forgotten legends, key monuments, hidden architecture — unfolding as you go.
At each stop, places ordinary guides miss — secret façades, sculpted crests, alleys steeped in history.
Every riddle is rooted in a real historical fact or local legend. You leave with dozens of stories to tell.
Learn to read buildings — flamboyant Gothic, Baroque, Art Deco — like a real art historian, while having fun.
Walk through the city like a novel's character — every alley becomes a stage, every square a theatre.
A voice walks with you at every step, tells the story of each place, reads clues, adds a cinematic feel.
Keep access to the guide & game for 1 year. Come back any time, share it with friends.
« You will not leave this city the way you entered it. »
Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.
No app to download. Play directly from your browser. Guided step by step, at your own pace.
One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.
Point your phone at the façade: a historical character appears and speaks to you in your language. Golden letters magically write themselves on the wall to reveal the puzzle answer.
Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.
French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.
Places tied to your adventure — optional entries, totally up to you · per person
Your quest begins at Noorderhaven, Harlingen's inner harbor dug in 1683 to accommodate the imposing Frisian Arctic whaling ships. From here, starting in the 17th century, 20 to 30 ships departed annually for Greenland, making Harlingen a vital hub for this daring industry. As Barent Fockesz, an active captain between 1660 and 1700, you recognize every dock, every mooring, still echoing with the cries of sailors and the creaking of rigging. This historic port is the gateway to an emerging UNESCO whaling heritage, a living testament to Friesland's maritime power.
Continuing your journey, you reach the Vuurtoren Harlingen, erected in 1837 at Commandeurssteeg 4. This 23-meter lighthouse was the first modern beacon to guide Frisian whalers returning from the Arctic, aligned with Noorderhaven for precise navigation towards Spitsbergen. As a rijksmonument under number 7079, it represents not only an essential landmark but also a symbol of hope for the crews of Sjoerd van Cuperus and Wybrand van Focx, braving the polar ice. Its reassuring glow whispers the secrets of triumphant returns and forgotten North Sea tragedies.
The route then leads you through Rozengracht, a 17th-century canal lined with whaling merchants' houses. Their gabled facades, typical of Friesland, housed families like the Fockes, who stored precious whale oil and baleen there. These elegant residences are silent witnesses to fortunes built on Arctic waters, to signed contracts and risks taken. As you cross this district, you feel the weight of the whaling economy that shaped Harlingen, a Hanseatic city whose prosperity was inseparable from whaling.
Your investigation leads you to the Stadhuis Harlingen, located at Grote Markt 32. This neoclassical town hall, built in 1730 by architect Romeyn de Hooghe, is the administrative heart of the city. Its archives contain 17th and 18th-century whaling contracts and crew lists, essential documents for your mission. The facade adorned with Harlingen's coat of arms, featuring a whale, recalls the city's Arctic maritime heritage. This is where important decisions were made, where sailors' lives were recorded, and where the future of the fleet was shaped.
Finally, you arrive at the Grote Kerk, the Jacobijnerkerk, Zuiderhaven 1. Built between 1485 and 1521 with its 45m tower, it houses the gravestones of 17th-century whaling captains, including that of Barent Fockesz himself, linked to the 'Flying Dutchman' myth. This monument is a place of memory where faith and maritime adventure intertwine. Through these stages, from Noorderhaven to Franekerpoort, the last remnant of the 1770 ramparts protecting the blubber warehouses, you have traced the whalers' route and cracked Harlingen's lost code, discovering that the city's history is etched into every stone, every canal, every coat of arms, celebrating its role in the Arctic Whalers' Route.
8 stages through the city
The gameplay: AR, camera, hidden clues
At each stop, open your phone camera: an augmented reality character appears on the façade and speaks your language. Hunt the clue — it materializes as golden letters on the real wall or floats in front of you. When you find it, the phone vibrates, an AR chest opens and reveals your answer fragment. 8 stops, 8 clues to find with the camera, 1 final code.
The stops on your route are a surprise. You'll discover them one by one, guided by your phone, starting from the meeting point.
One phone = one team. Pick the number at checkout (1 to 10).
Solo, or a group sharing the screen. One team, one code.
Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.
Friends, bachelor/bachelorette, small office outing — each their own code, each plays at their own pace. Tiered pricing then €6 flat per phone from the 6th.
Ready to live this adventure?
Get my code · 12€No calendar booking. Code sent immediately by email.
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Decipher clues related to 17th-century navigation techniques and maritime maps.
Relive the challenges of perilous journeys in the icy waters of the Arctic.
Discover the daily life, superstitions, and exploits of Harlingen's whale hunters.
The fate of Harlingen's fleet rests in your hands.
Outwit the traitors and uncover the secret of the lost map!
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
Point your phone at the façade: a knight, witch, monk, sailor, detective or ghost appears full-screen and speaks to you in your language with their dedicated ElevenLabs voice (each character has their own unique voice) — your living guide.
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
Every puzzle available as text AND voice-over: read at your own pace or listen eyes-free while walking. Great in groups and for accessibility.
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
No, never. You get a link, you click, it plays in your browser. That's the point of a PWA: same as an app, without the hassle.
GPS yes (handled by your phone). Maps yes (tiles cached). AI and hints need an intermittent 4G connection.
1 h 30 to 2 h 30 depending on your pace. The timer runs but only for the leaderboard — you play at your own tempo.
You get 3 levels of hints per puzzle (increasing penalty). If truly stuck, you can skip the step (45-min penalty but you keep going).
From 12 without an adult, from 6 with an adult reading puzzles. Works for families, couples, friend groups, companies.
Pre-register or contact us — we'll email you as soon as your city is live.
Point your phone at the façade: a historical character appears full-screen and speaks to you in your language. At the puzzle climax, golden letters magically write themselves on the real wall — that's your answer. After each puzzle solved, a treasure chest floats in front of you. Seeing is believing.
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Dive into Harlingen's port, where tough Frisian captains of the Arctic whaling fleet set off to hunt the giants of the sea in the 17th century.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
🔒Secure payment · Code in 5 min · Free cancellation
🪙+24 TripCoins granted with your booking
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Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
12€. Plongez dans les collections dédiées à l'histoire maritime de Harlingen, notamment les maquettes de navires baleiniers et les instruments de navigation du XVIIe siècle.
Accès libre. Découvrez la richesse écologique du Waddenzee, classé au patrimoine mondial de l'UNESCO, et son lien avec l'histoire des marins de Harlingen.
5€. Goûtez ces délicieux biscuits frisons traditionnels, parfaits avec un café chaud, dans une boulangerie locale du Grote Markt.
Accès libre. Observez les phoques et les oiseaux migrateurs depuis la digue, un panorama sur la mer des Wadden et l'horizon où les baleiniers partaient autrefois.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.