Filmed on the eponymous fortification located between the island of Aix and the island of Oléron, Fort Boyard is a game show in which a team of candidates performs various physical and intellectual tests (speed, agility, endurance, strength, etc. ), in order to be able to grab keys to access the treasure room to open caches containing puzzles to solve and then grab pieces called "boyar". It is surrounded by the "population of the fort" which reinforces the mysterious and fantastic atmosphere of the place.