The Marine Worlds Carrousel The Nantes Metropole community council meeting of 26 October 2007 approved the launch of the Marine Worlds, the second phase of the Machines de l’Ile project. The huge carrousel rises nearly 25 m high and measures 20 m in diameter. 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. People visiting the Gallery can watch as the creatures are built in the Machine Workshop, from the highest gangway in the Warehouses. The view of the work space will be a new high point of the visit.