A lifeguard (Front) is seen on duty at Cherry Beach in Toronto, Canada, on June 22, 2020. Lifeguards returned to six of Toronto's swimming beaches beginning on Monday. (Photo by Zou Zheng/Xinhua)

A lifeguard pushes a lifeboat into Lake Ontario at Cherry Beach in Toronto, Canada, on June 22, 2020. Lifeguards returned to six of Toronto's swimming beaches beginning on Monday. (Photo by Zou Zheng/Xinhua)

A lifeguard watches over swimmers at Cherry Beach in Toronto, Canada, on June 22, 2020. Lifeguards returned to six of Toronto's swimming beaches beginning on Monday. (Photo by Zou Zheng/Xinhua)

A lifeguard (Rear) is seen on duty at Sunnyside Beach in Toronto, Canada, on June 22, 2020. Lifeguards returned to six of Toronto's swimming beaches beginning on Monday. (Photo by Zou Zheng/Xinhua)