People cool off along the Danube river during a heatwave in Vienna, Austria, July 3, 2025. (Xinhua/He Canling)

Children cool off at a splash pad during a heatwave in Vienna, Austria, July 3, 2025. (Xinhua/He Canling)

Children cool off at a splash pad during a heatwave in Vienna, Austria, July 3, 2025. (Xinhua/He Canling)

A woman rides past a splash pad during a heatwave in Vienna, Austria, July 3, 2025. (Xinhua/He Canling)

Children cool off at a splash pad during a heatwave in Vienna, Austria, July 3, 2025. (Xinhua/He Canling)

A woman rides past a splash pad during a heatwave in Vienna, Austria, July 3, 2025. (Xinhua/He Canling)