Exclusive - Arthur Germain, son of the mayor of Paris Anne Hidalgo during a training session at the Keller Pool in Paris, France on March 6, 2021 Arthur is preparing to swim alone the 780 km of the Seine from the source in Côte d ‘Or on June 6 with an arrival in Le Havre scheduled for July 28, 2021. Photo by Laurent Zabulon/ABACAPRESS.COM