Paris opened a section of the Canal Saint-Martin to swimmers on Wednesday evening to provide a cooling option for residents [1].

The move comes as France braces for a record-breaking heatwave that threatens public health. By designating a safe swimming area, city officials aim to reduce the risks associated with unregulated bathing in urban waterways during extreme temperature spikes.

Mayor Anne Hidalgo said the initiative will help the population cope with exceptionally high temperatures [2]. The decision reflects a shift in city management toward harm reduction during weather emergencies. The city is facing a climate where temperatures could reach highs of 40 °C in some regions of France [3].

Local authorities have focused on making the water accessible and monitored to prevent accidents. The city is attempting to balance public demand for relief with safety protocols to ensure the water is fit for use [1].

"The city would rather make canal swimming safe rather than spending time pulling people out of the water," Hidalgo said [4].

This temporary measure allows residents to access the water in a controlled environment. The Canal Saint-Martin, typically not used for swimming, now serves as a critical piece of urban cooling infrastructure as the heatwave persists [2].

City Hall's strategy focuses on preventing heat-related illnesses by providing immediate, accessible relief. The opening of the canal is part of a broader effort to adapt the city's geography to the increasing frequency of extreme heat events [1].

“The city would rather make canal swimming safe rather than spending time pulling people out of the water.”

The decision to open the Canal Saint-Martin signals a transition in how European cities manage extreme heat. By legitimizing and regulating swimming in urban canals, Paris is moving away from prohibition and toward adaptive infrastructure. This approach acknowledges that during record-breaking heatwaves, public behavior—such as seeking water for cooling—will either be managed by the city or occur unsafely in unregulated areas.