Less than ten days before the opening of the Paris Olympics, Paris Mayor Hidalgo swam in the Seine River on the 17th to showcase the effectiveness of river water purification over the past few years. On July 17th, Paris Mayor Hidalgo (left) and Paris Organizing Committee Chairman Estange swam in the Seine River. The opening ceremony and some competition events of this Olympic Games will be held on the Seine River, photographed by Cao Can, a reporter from Xinhua News Agency. The mayor of Paris personally "tested the waters" to demonstrate that the water quality of the Seine River has met the cleanliness standards required by the competition. On the day of the trip with Hidalgo, there were also Paris Organizing Committee Chairman Estange and others. Hidalgo told the media on the same day that the Olympics are the "accelerator" of the Seine River purification project. After the Olympics, people can continue to swim in the Seine River, and the clean water also protects the ocean, which will benefit future generations. On July 17th, people were swimming in the Seine River. According to French media reports, the water quality test report of the Seine River released by the Paris municipal government on the 4th showed that the levels of Escherichia coli and Enterococcus in the Seine River Olympic swimming section had dropped to the open water competition standards required by FINA after four consecutive days of clear weather. On July 17th, Paris Mayor Hidalgo (center right) swims in the Seine River. Photo by Xinhua News Agency reporter Gao Jing