CNN Paris correspondent Melissa Bell reports from the water as Paris mayor Anne Hidalgo delivers on her promise to swim in the River Seine - in an effort to alleviate concerns around the river's suitability for swimming events during the Paris Olympics, despite a 1.4 billion Euro (1.5 billion USD) clean-up plan ahead of the Games. The Opening Ceremony will take place on the river on July 26, if currents are not too strong. #paris #seineriver #olympics #cnn #news