Ireland's Fittest Family, a new entertainment series from the makers of Celebrity Bainisteoir, is coming to RTÉ One – here's your chance to enter "the most extreme fitness competition ever".

Twelve families in teams of four will compete against each other on the toughest endurance courses in Ireland with €15,000 and the title of Ireland's Fittest Family 2013 for the winners.

Among the mentors on the show are Olympic silver medal-winning boxer Kenneth Egan, Clare hurling legend Davy Fitzgerald and former Ireland rugby coach Eddie O'Sullivan.

For more details and to enter, click here or telephone: 086 0626111.

Closing date for applications is Friday June 7.