Around one in every six primary pupils in England and Wales can barely swim a stroke when they leave school, a survey's shown.
Sport experts think this is terrible because:
The biggest fear is that children could be at risk if they can't swim.
Around 50 children die from drowning every year.
Sports get forgotten
They say there's so much pressure for schools to do well at maths and English, that sports get forgotten.
And many schools are getting less cash, so they can't afford to give kids swimming lessons.
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More people should get into swimming
