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last mo.

Paris to Reopen Seine for Public Swimming After 100-Year Ban

Three monitored swimming sites will welcome bathers this summer, marking a milestone in the €1.4 billion cleanup effort.

Paris, le 29 mars 2025, des baigneurs participent à la Coupe de Paris dans le bassin de la Villette.
La Seine va réouvrir à la baignade dans Paris, après un siècle d’interdiction.

Overview

  • Public swimming in the Seine will be available from July 5 to August 31, 2025, for the first time since 1923.
  • Three designated sites—Bras Marie, Port de Grenelle, and Bercy—will offer free access and lifeguard supervision for over 1,000 swimmers daily.
  • Daily water quality testing, weather monitoring, and safety protocols will determine site openings, with closures in case of pollution or strong currents.
  • The €1.4 billion cleanup project, funded by the State, City of Paris, and local authorities, included major infrastructure upgrades like treatment plants and stormwater basins.
  • Water quality tests during summer 2024 showed compliance with international standards 75% of the time, reaching 100% during dry weather conditions.