No one would accuse RTÉ GAA commentator Marty Morrissey of being wet behind the ears - but he's diving in to his latest task come hell or high water.

Despite having grown up by the sea, the bould Marty does not know how to swim.

Speaking on Today with Miriam on RTÉ Radio One, he revealed that, as part of the Marty and Bernard's Big Adventure programme, he was put into a lake in Wicklow and he said the fear of it all came back to him.

"I'm going to try and learn, I'm not saying lead from the front, but if I could do one lap of a pool," he told Miriam.

It's all part of an RNLI and GAA initiative, promoting the RNLI's Respect the Water campaign. Also involved in the campaign is former hurling manager Anthony Daly, who can swim but has had experience of losing a fond friend on the water.

Marty said that living on an island, one thing that annoys him about himself is the fact that he can't swim. Coming together with the GAA, Marty hopes to spread the message that we can savour the water but be careful.

"We should love the water, we should respect the water," he said.

Miriam then told Marty she looks forward to seeing him in his Speedos!

You can listen to the interview by clicking here.