On 1 July, my local MP, Sarah Olney, included a paragraph in her daily email update with the headline: “Jumping in the Thames is NOT a safe way to cool off.” The newsletter went on to say the Environment Agency and the Port of London Authority are working hard to educate people to stop jumping in the river or using paddleboards. She added that the local police and fire brigade are “becoming very concerned about the situation, as the currents in the river can be deceptively strong.”