'This is why rivers and lakes are so dangerous to swim in'

A heatwave has tempted many people — especially young people — into swimming in inland lakes and rivers, and there have been multiple recent fatalities at beauty spots over the bank holiday.
Inland waters can hide hazards and remain dangerously cold, causing "cold‑water shock" if you jump in suddenly; entering slowly and staying calm are crucial.
Safety advice: don’t attempt a direct rescue—use reach-and-throw methods, call for help, and if you’re in the water try to float on your back and control your breathing; local groups are stepping up education.