Archive images of the Seine as a training session for the open water swimming events was cancelled on Tuesday because the water was unfit for swimming, the organisers announced. This was the fifth training session to be cancelled since the start of the Olympic Games, with the first four for the triathlon. STOCKSHOTS of the Seine, water quality controls, sewers discharging into the Seine in wet weather, structures to collect floating waste (dams and boats), work on the rainwater storage basin at Austerlitz, Olympic test events, sporting events in the Seine and river transport in Paris