Ava Rose McCourt was being watched by Christina Bryant while swimming with a pool float at Clinton Mobile Home Resort in Tiffin, Ohio.
Christina told police she turned away for a moment and when she looked back, the youngster had gone.
Adults and children began searching for Ava, and she was then found ‘lying on the bottom’ of the deep end of the pool by another child, according to police.
Bystanders pulled her out of the water and began to perform CPR on her. She was later taken to Mercy Tiffin Hospital, where she was pronounced dead.
Witnesses told police they did not notice any splashing or signs of drowning.
Ava’s dad, Jesse McCourt, was fishing at a trailer park nearby at the time that she drowned.
According to her parents, she was taking swimming lessons a few days before the tragic incident on June 28.
Tributes have since been paid to the pupil, who is said to have loved singing and dancing and was eagerly awaiting her 10th birthday so she could make her first video on YouTube.
A GoFundMe page, which so far has raised more than $1,400, said: ‘She was the most loving wonderful and thoughtful, loving little angel we have ever met.
‘She was so full of life,’ her aunt, Jaimee Sergent, told 13 Action News.
‘She never met a stranger in her whole life. She has so much love for everybody.’
‘Our family is completely devastated by her sudden loss,’ states the GoFundMe page.
‘My brother and Christina and Kinsey weren’t prepared for such a loss so there wasn’t any life insurance.’
