Are activities accessible to wheelchair users?

The Galerie des Machines is located in a single-storey, wheelchair-accessible building.
The gangways of the Marine Worlds Carrousel are also wheelchair-accessible, along with 2 of the elements located on the 3rd level.
The Grand Elephant can accommodate one wheelchair user on each of its trips departing from Les Nefs (The Naves).
The balconies overlooking the workshop can be reached via elevator.
The Prototype Branch, however, is not accessible.