Thebault and Hidalgo (R) stand on board a Bubble electric maritime flying taxi during a demonstration.
The brainchild of French yachtsman Alain Thebault, the aerodynamic Sea Bubble made no noise and no waves as it took a star turn on the River Seine with Paris Mayor Anne Hidalgo aboard.
"It was a perfect flight," Thebault, 54, said after putting the prototype through its paces between the Eiffel Tower and the Musee d'Orsay
