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BBC Live reporter
A 10-year-old girl swam the equivalent distance of the English Channel - in her garden.
Connie Emmett has done the 34,000 strokes of the crawl needed to cover 23 miles in a paddling pool - all for her local hospital.
Connie raised £2,300 for the Royal Surrey County Hospital in Guildford.
A serious competition swimmer, Connie has continued to use the pool during lockdown, and her mum Sarah estimates that she's probably covered enough distance now to have returned from France.
Unsurprisingly, Connie wants to have a go at swimming the real thing when she's old enough.