Heatwave warning as map shows all the beaches and rivers where Brits shouldn't swim
![Heatwave warning as map shows all the beaches and rivers where Brits shouldn't swim](https://i2-prod.mirror.co.uk/news/uk-news/article33263415.ece/ALTERNATES/s615/1_swns_weston_weather_16.jpg)
The Environment Agency has tested the water quality of its official bathing spots and has warned swimmers to avoid several locations across the UK, including beaches and rivers