Last updated on October 22, 2025
Yes, swimming is allowed in the Seine River in Paris—but only at designated sites and during specific periods, with strict safety and hygiene conditions enforced by the city.
A Historic Dip: Swimming Returns to the Seine
For decades, the idea of swimming in the Seine was more fantasy than fact. The river, iconic and winding through the heart of Paris, was long considered too polluted and too dangerous for a casual swim. But in a city that thrives on reinvention, the Seine has staged a comeback—one splash at a time.
Thanks to years of environmental cleanup and infrastructure investment, Paris officially opened three bathing sites along the Seine in July 2025. This move marked a historic shift, transforming the river from a scenic backdrop into a summer playground. The initiative is part of the “Paris en Seine” program, a legacy project tied to the 2024 Olympic Games, which included open-water events in the river.
Where and When You Can Swim
Swimming in the Seine is not a free-for-all. It’s allowed only at three designated locations: bras Marie, bras de Grenelle, and quai de Bercy. These sites are open daily during the summer months, typically from early July to mid-September. Access is free, but swimmers must meet certain conditions.
Each site has its own schedule and age requirements. For example, at bras Marie, swimmers must be at least 14 years old and 1.40 meters tall. At Bercy, the minimum age is 10, with a height requirement of 1.20 meters. Lifeguards supervise all launches, and swimmers must wear a lifebuoy, which is provided on-site.
The City of Paris monitors water quality daily, testing for bacteria like E. coli and enterococci. Swimming is only permitted when these levels meet the standards set by the Agence Régionale de Santé (ARS), in line with European bathing water directives.
Safety First, Always
The Seine may be cleaner, but it’s still a living river—subject to currents, weather, and runoff. That’s why swimming is only allowed when conditions are safe. Rainfall, for instance, can temporarily spike pollution levels, leading to site closures. These are announced on-site and via the official Paris.fr portal.
Each bathing area is equipped with lifeguards, safety gear, and facilities like showers and changing rooms. The Bercy site even includes a solarium for post-swim relaxation. However, not all sites are fully accessible to people with reduced mobility—Bercy, for example, limits access to its solarium only.
A Cultural Shift in the Capital
Swimming in the Seine isn’t just a novelty—it’s a symbol of Paris’s evolving relationship with its environment. The river, once written off as unswimmable, now hosts thousands of bathers each summer. In 2025 alone, nearly 100,000 people took the plunge.
This transformation reflects broader efforts to reclaim urban waterways for public use. It’s also a nod to Paris’s commitment to sustainability, health, and leisure. The city hopes that by 2030, swimming in the Seine will be a year-round possibility.
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Sources
Swimming in the Seine: answers to all your questions
https://www.paris.fr/en/pages/swimming-on-the-seine-all-the-questions-you-need-to-know-31738
1 July 2025
Baignade dans la Seine : consultez les chiffres détaillés liés à la qualité de l’eau
https://www.paris.fr/pages/baignade-dans-la-seine-consultez-les-chiffres-detailles-lies-a-la-qualite-de-l-eau-32052
5 August 2025