The project is based in the old covered buildings of the former shipyards in Nantes that were at one time used for ship construction (les nefs), and later used as business sites.
It features 35 moving underwater creatures on three levels: the ocean floor, the depths, and sea and boats.
Visitors will be able to move about amidst a ballet of aquatic animals and sea carriages, as well as climb aboard and guide the movements of the Machines.
The project plans to allow visitors to climb either onto the back or onto the wings of the birds for a circular flight over the hanging gardens of the tree.
Some visitors are invited to control marine animals or the European Flight Test Center.