The swimming in the Seine and Marne is back for a second consecutive season in Paris and in Île-de-France. The regional prefecture, the City of Paris and the Metropolis of Grand Paris confirmed on Friday, June 5, 2026, the opening of eight free and safe swimming sites for the summer 2026: three in the capital, four in Val-de-Marne and one new addition in Seine-Saint-Denis. After the success of the first season, which drew close to 100,000 bathers to the Seine and 50,000 to the Marne, the swims are set to resume from June 20 at the sites.
In the capital, the three swimming sites in the Seine reopen from July 4 to the end of August 2026, and they remain free of charge. You’ll find the Bras de Grenelle, in the 15th arrondissement facing Île aux Cygnes, the Bercy site, in the 12th arrondissement, and the Bras Marie, in the 4th arrondissement, opposite Île Saint-Louis.
Good news for this latest development: the Bras Marie basin, moved slightly toward the Louis-Philippe Bridge to better accommodate the river's diverse uses, is now accessible all day. Last year, it opened only in the morning to let boats pass in the afternoon. This time, pilings known as the Ducs d’Albe secure the swimming zone. Authorities note that the 2025 season ended without any health alerts reported to the Regional Health Agency, despite occasional closures in July due to rain.
On the Marne side, the four sites in Val-de-Marne are being renewed, and a fifth will open in Seine-Saint-Denis, in Neuilly-sur-Marne, alongside the Rives de Paris site. Here is the announced opening schedule:
Local authorities are already looking further ahead, with plans for 2027 and beyond to open new swimming sites upstream and downstream of Paris. The capital’s new mayor, Emmanuel Grégoire, is also pushing to create a designated swimming area in the Arsenal basin, at the foot of Place de la Bastille. All practical information about Paris’s sites can be found on the City of Paris website.
Caution, though: in the wake of the surge in wild swimming during the late-May heatwave, authorities remind the public that swimming outside marked zones carries a serious risk of drowning. Currents run strong, the riverbed is silted and snagged with vegetation, and traffic on the Seine and the Marne remains dense. Swim only in supervised areas, during the stated opening times and dates.
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