The One Fitness Crew are taking on HELL & BACK, Irelands Toughest Mental & Physical Endurance Challenge! It is the countrys largest and most popular obstacle course run.

The crew are raising vital funds for the Children's Heart Centre, at CHI Crumlin.

There is no easy way through Hell & Back! are we tough enough?

To survive, we must conquer all the elements thrown at us, whether that is the temperamental weather conditions, the gruelling natural environment or the torturous man-made obstacles, similar to some of the challenges that children and their families in Crumlin must face.

We are hoping to make a difference to every sick child.