At the Paris Olympics, Australian swimmer Moesha Johnson won a silver medal in the women's 10km marathon swimming event, finishing just behind Dutch champion Sharon van Rouwendaal. Johnson's performance was notable as she had previously placed sixth in the 1500m final, making this a significant achievement, especially after narrowly missing a world championship medal earlier this year. The marathon swim took place in the Seine River, which had undergone extensive upgrades to address water quality concerns, allowing the event to proceed despite earlier issues that affected triathlon events. Organizers had confirmed that the water met safety standards after significant investment in infrastructure improvements. However, some competitors experienced health issues related to previous swims in the river, prompting discussions about safety measures. The mixed relay triathlon also faced similar challenges but proceeded once water quality was deemed acceptable.