Divers and diving fans flocked to the comment section of Mr Kirkconnell's video, lamenting the actions of those in the clip. One person wrote: "And all they had to do was as touch his nose gently ...

Alessia Zecchini is getting ready to dive. Nose pegged firmly shut, she sucks in a few final breaths of air through pursed lips as the countdown begins. On zero, she flips over and powers down ...