Paris Mayor Emmanuel Grégoire said that swimming is now permitted in designated sections of the Canal Saint-Martin starting Wednesday, June 17, 2024 [1].

The decision comes as the city faces a heatwave, known as a canicule, which has pushed local temperatures higher. Opening the waterway provides residents with a critical cooling resource in a densely populated urban environment where air conditioning is not universal.

City officials said that the swimming areas will be supervised to ensure public safety. These designated spots are intended to prevent unregulated access to the waterway, and manage the flow of people seeking relief from the heat [1, 2].

The Canal Saint-Martin has historically been a site for walking and boating, but not for swimming. By authorizing access to the water, the municipal government aims to mitigate the health risks associated with extreme heat, particularly for those without access to private pools or cooled indoor spaces [2].

This move follows a pattern of urban adaptation in Paris, where the city has sought to integrate more water-based cooling solutions into its infrastructure. The supervision of these sites is a key part of the city's strategy to balance public health needs with safety regulations [1].

Local authorities are monitoring the water quality and safety protocols to maintain the designated areas. The initiative is a temporary response to the current weather episode, focusing on immediate relief for the population during the peak of the summer heat [2].

Swimming will be permitted and supervised in designated sections of the Canal Saint-Martin

The authorization of swimming in the Canal Saint-Martin reflects a shift in urban management, treating public waterways as essential public health infrastructure during climate-driven heat events. By transitioning a decorative or transport canal into a supervised cooling zone, Paris is implementing a tactical urbanism approach to combat the 'urban heat island' effect, where city centers remain significantly warmer than surrounding rural areas.