An initial introduction to the animal, with the screening of a short film, will take place first in the theatre. When night falls, it's time to go and observe them on the banks of the Ouen bridge. You will follow the guide equipped with his lamp and his Bat-box (equipment that records and slows down the speed of the sound emitted by the bat so that humans can listen to it and recognise it). He will introduce you to the different species that live in the region and answer the many legends that accompany this harmless mammal.