This past month, Paris has opened up its urban waterways for safe, clean public swimming. Paris’s Mayor Anne Hidalgo opened-up new open-air swimming enclosure in the Bassin de la Villette, a basin constructed for barges that links the Canal de l’Ourcq with the Canal Saint-Martin in the city’s inner northeast. In temperatures of over 90 degrees Fahrenheit, Parisians lined up to splash about the three new pools fed directly from the canal’s waters, separated from the watercourse’s general flow only by filter meshes to keep leaves and other objects out.
Up to three hundred people at any time can use the lifeguard-protected pools, although the pools only have locker space for 80. Located in a part of Paris already popular as a place to stroll in fine weather, the new bathing spot is likely to prove a major hit in an already hotter-than-average summer. Early reports suggest that the water is indeed delightful, though a small residuum of green algae does make a post-bathe shower a good idea.
Paris has been working on cleaning up the waters here for decades. Paris’s canals here were once unsurprisingly filthy, running as they do through a former industrial area once packed with cargo barges and polluted by sewage. Since the 1980s, however, regulations managing industrial run-off have tightened substantially, while Paris has invested heavily in wastewater treatment and in preventing sewage from being discharged into the canal during periods of high water. Two years ago, following a concerted clean-up, bacteria levels dropped below safe levels, and rogue bathers have been jumping in the water here for a while. Meanwhile, the Canal Saint Martin, which runs downstream from the basin down to the Seine, was entirely drained and cleaned in 2016, a process that sent a powerful visual message to Parisians that the area’s historic filth was being swept away.
It’s no mean feat to ensure that waters like these running through the heart of a megacity of 12 million people are clean enough to swim in. Paris has declared it won’t stop here: By 2024, it wants the Seine to be swimmable, as well as the Marne, the river that feeds into it via the city’s canals.