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The number of people swimming in Berkshire has fallen by more than a third in ten years.

David Wilkie, Olympic Swimmer:

"Fifty percent of children in primary school can't swim a length...I think that's historical in the sense that school swimming has never been very big.

"I think the world has changed, you know that exercise has changed, people have more options now.

"A lot of people are heavier, so you know they feel a little bit more self conscious going to the pool."