As the heat peaks, the urge to take a dip grows, and a swim in the Marne comes just in time for this summer 2026. In the Val-de-Marne and in Seine-Saint-Denis, five designated swimming sites that have been upgraded and are now monitored are reopening or welcoming visitors, just a few minutes from the metro or RER. The Île-de-France prefecture has published the season’s calendar, and the good news is that the first swimmers will be able to dive in starting on Saturday, June 20, 2026.
The beaches of Maisons-Alfort and Joinville-le-Pont, run by the territory Paris Est Marne & Bois, kick off the season from June 20 to August 31, 2026. These two sites, which drew roughly 50,000 bathers last summer, each feature separate pools for adults and children, with lifeguards on duty throughout. Access is booked online via the À la plage by Paris Est Marne et Bois platform, for a few euros to swim for two hours.
The Saint-Maur-des-Fossés beach will also welcome swimmers starting June 20, but for just one month, until July 19, 2026. Access is free, with no reservation required, for time-limited sessions. In , you'll have to wait until July 4: the site, also free, closes on July 19. In the meantime, the prefecture reiterates the explicit ban on swimming outside designated and supervised zones, as currents, mud, and navigation make the river dangerous elsewhere.
It's the season’s big debut: Seine-Saint-Denis opens its very first river-swimming site in Neuilly-sur-Marne, from July 4 to August 30. Called Les Rives de Paris, this new (paid) venue sits in a bend of the Marne closed to navigation, near the marina. Two basins with running water await visitors this year. A powerful symbol for the department, backed by the Seine-Saint-Denis department, which has invested heavily in cleaning up the river.
Swimming is back on after a ban that stretched from 1970, tied to pollution. The turnaround stems from Paris 2024 Olympic legacy and the massive cleanup efforts along the Seine and Marne. Water quality is now checked daily, with forecasts issued several days in advance. Authorities also note that there were no health alerts reported to the regional health agency during the 2025 season, even though there were occasional closures after July rains. A confidence-boosting invitation to dip in this summer, right on your doorstep. Do check official sites before you go, as openings depend on the weather and the day's water quality.
Swimming in the Marne at Maisons-Alfort, Val-de-Marne, for Summer 2026
Swimming in the Marne makes a grand comeback in Maisons-Alfort, Val-de-Marne: the site laid out at the foot of the Charentonneau footbridge has reopened its pools until the end of August 2026. We tested it and here’s everything you need to know. [Read more]
La plage et baignade de Joinville-le-Pont dans le Val-de-Marne pour se rafraîchir
Joinville-le-Pont's beach and swimming area in Val-de-Marne to beat the heat
Swimming in the Marne returns this summer to Joinville-le-Pont in the Val-de-Marne: the beach laid out on the marina’s sandbank has reopened its pools until August 31, 2026. Now is the time to enjoy it. [Read more]
Swimming in the Marne: La Rive de Neuilly opens with a free inauguration
Swimming in the Marne makes a comeback in Neuilly-sur-Marne (Seine-Saint-Denis) with La Rive de Neuilly, a monitored natural area that the town will open to the public free of charge on Saturday, July 4, 2026, and will stay open through August 30, 2026. Here’s everything you need to know. [Read more]
Free swimming in Val-de-Marne: Jardin du Beach opens its doors.
Free swimming in the Marne is making a comeback in Saint-Maur-des-Fossés: the Jardin du Beach, set along the water at La Varenne, will welcome swimmers from June 20 to July 19, 2026, with no reservation required, in a supervised and secure pool. [Read more]
Champigny Beach 2026: free swimming in the Marne and its activities
Swimming in the Marne makes its grand return to Champigny-sur-Marne with Champigny Plage 2026, from July 4 to 19, 2026. On the agenda for this 21st free edition: a beach, an designated swimming zone, concerts, games, and a guinguette vibe by the water. [Read more]
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