 Hello, I'm Emily Thomas with the BBC News. The Mayor of Paris, Anne Hidalgo, has gone for a swim in the River Seine to display confidence that the water is clean enough for the Olympic Games due to begin next week. Recent water quality tests have indicated the river is clean enough for swimming, but several previous ones had revealed high levels of bacteria. Dressed in a wetsuit, Miss Hidalgo put her face down in the water and swam front crawl for the assembled media and spectators.