They can be counted on the fingers of one hand in Europe: the first French river boat powered by hydrogen was inaugurated on December 3 on the Seine. Baptized Zulu 06the barge, which will sail in Paris and its surroundings, is operated by the shipowner Sogestran and has benefited from European financial support. It is the third unit of this type in Europe, and it still faces many challenges, including that of autonomy.