Le Conseil du marais investigates the Marais de l'Île Equipped with your smartphone or tablet, go with your family to discover the Marais de l'Île in Pont Saint Martin. The Council of Marshes is waiting for you to entrust you with an investigation! An unknown beast rode in the marsh of the island and would terrorize the inhabitants! Help Martie, a young otter, to investigate this most important case and lift the veil on the mystery of the Marais!