Swimming in the Seine River for the Olympic triathlon has been canceled for two consecutive days due to poor water quality after heavy rain. Tests revealed unsafe levels of pollution, including E. coli bacteria, making the water unsuitable for training. Despite these setbacks, organizers remain optimistic that water conditions will improve in time for the men's and women's triathlon events scheduled for Tuesday and Wednesday, respectively. Measures have been taken to clean the river, including a €1.4 billion investment, but recent rainfall has complicated these efforts. Contingency plans include postponing the events or changing them to duathlons if water quality does not meet safety standards. The health and safety of the athletes remain the top priority for Paris 2024 and World Triathlon.