Depuis des siècles, l’abbaye de Daoulas conserve un savoir caché, un héritage oublié des temps modernes. Ceux qui ont foulé ces pierres avant vous ont laissé des traces, des signes pour guider les esprits éclairés. Vous voici aux portes d’un mystère ancien. Soyez attentifs aux murmures des pierres, aux ombres des arcades, et aux secrets gravés par le temps. Si vous êtes dignes, les anciens vous révéleront ce qu’ils ont dissimulé. Mais prenez garde : seuls ceux qui savent observer, écouter et comprendre pourront avancer sur ce chemin initiatique.

Trezio transforms this iconic French castle into a living treasure hunt. Through puzzles, storytelling, and augmented clues, visitors uncover stories that once defined the heart of the Loire Valley. It's more than a visit — it's an adventure that blends learning with exploration.


Getting started with Trezio is simple. All you need is your smartphone and a sense of adventure. Whether you're visiting with friends, family, or a school group, our app guides you step by step through puzzles, stories, and hidden discoveries at the site.
Find it on the App Store or Google Play to access all available experiences.
Search by name or location to unlock the adventure.
Arrive at the castle and let the app guide you through the clues, challenges, and surprises waiting inside.
Every adventure brings people together. Here's a glimpse of the excitement captured during our live experiences.




Organizations across Europe are already using Trezio to engage more visitors and create lasting memories.
"A perfect mix of history and fun! My kids couldn't stop talking about the hidden room challenge."
Claire M
"This brought the castle to life in a way we've never seen before."
Julien & Marie
"Loved the mix of riddles and local stories. Can't wait to try the next one!"
Sophie L