This is not an "amusement park" but instead a displayed work in progress by an artist-industrial…read moregroup of some fascinating large mechanical creations in a well reused shipyard.
On an hour-long circulation of the machines, guides walk through each unit, showing how they move and providing dialogue in French. There's an app they have you download that provides basic info in several other languages including English, but not nearly what the live info seems to provide.
Everything is charged separately: the machines on display, elephant rides, and carousel rides. Doing all 3 would add up to over 25 EUR per adult.