Youngsters put their lives at risk by jumping from bridges into rivers in Newark and Sherwood
A 'stay safe' warning has been issued because hot weather has led to increasing reports of youths jumping off bridges, swimming in the River Trent and displaying anti-social behaviour.
Open water is cold and may contain hidden debris, which can result in injuries or drowning as it is often much deeper than people think.
In addition, rivers, canals and lakes are often polluted by toxic chemicals which can lead to illness.
More by this authorDan Churcher
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