RTÉ Sport's Peter Sweeney meets Mary O'Leary from Macroom, Co Cork, one of the 70,000 volunteers at the Rio Olympic Games.

Having volunteered at London 2012, O'Leary was keen to get involved again.

"Every single day is like an adventure," she admitted.

And even though there is no monetary reward at the end of it, she added that "you get more back then you actually put in".