With temperatures of over 30°C fast approaching the Environment Agency is reminding people not to take unnecessary risks while trying to cool off, and to always make sure family and friends stay safe.

The warning comes a year after several serious incidents on the Thames and ahead of this year’s Drowning Prevention Week (June 18-25).

Water can contain hazards, particularly in and around structures such as bridges, locks and flood channels, as well as dangerous flows after rain and thunderstorms. Unexpectedly cold waters or strong currents can also catch bathers off guard.

Rivers are great places to have fun, get close to nature and spend time with friends and family, but vigilance can save lives and water-related accidents can be avoided by knowing how to stay safe.

Russell Robson, waterways team leader for the Environment Agency, said: “The summer is always a busy time on our rivers, and when the days are long and warm, there is nothing more idyllic than lazing by a meandering river and dipping your toes in the cooling water.

“Though we want people to not just enjoy it, but to remember some basic safety points as well.”

The key safety points are:

Mr Robson continues: “Over the last few years, we have worked hard to get the safety message out to children and parents, stressing that people stay away from the edge, that children must be accompanied by an adult, that water can be colder than it looks and that swimming should be confined to recognised swimming areas, pools and lidos.

“We often see youngsters jumping off bridges along many of the rivers in the South East and, while this can be great fun, there are hidden dangers in the water that could cause them to get into difficulties. We are urging parents to supervise their children closely in and around water and make sure they do not go into the water alone. 

“Come and enjoy the river and all that is going on around it, but please remember to bring your common sense with you as well.”