 Since 1999, the park has hosted Ballon Generali, a tethered helium balloon which under optimal weather conditions can lift a maximum of 30 visitors 300 meters above Paris.The ten minute ride provides views of the Champ de Mars, the River Seine, Basilica of the Sacré Cœur and the Notre Dame de Paris Cathedral.The six serial gardens are each associated with a metal, a planet, a day of the week, a state of the water, and a sense