London’s first designated bathing spot on the River Thames has been closed to the public following the detection of toxic algae. Officials issued an urgent advisory warning swimmers to stay out of the water to avoid potential health complications associated with exposure to the bloom.

The warning extends beyond human swimmers, with local authorities emphasizing that it is "vitally important" for dog owners to keep their pets away from the riverbank at this location. Toxic algae, often referred to as blue-green algae, can cause serious illness or even be fatal to animals if ingested or if they come into contact with contaminated water.

While the site was established as a landmark project to improve access to the river for recreational use, this incident highlights the ongoing environmental challenges facing the Thames. Authorities have not yet provided a timeline for when the water will be deemed safe for public use again, noting that the situation is being monitored. The closure serves as a reminder of the risks associated with natural water bodies, particularly during warmer periods when algae growth is most prevalent.