Good Morning Britain presenters Susanna Reid and Kate Garraway proved they weren’t afraid to muck in as they joined in the Tough Mums challenge.

The TV stars – usually seen with perfectly blow-dried hair, pristine make-up and glamorous dresses on the ITV breakfast show – slid down mud banks, waded through filthy water and swung through the air on ropes as part of the gruelling obstacle course.

GMB chose 50 inspirational mothers to join the presenters and celebrity guests including Pussycat Doll Kimberly Wyatt and X Factor winner Sam Bailey on the 5km challenge, designed by obstacle course organisers Tough Mudder.

Susanna Reid said: “A lot of fears were conquered out there today. Every single one of the awesome women taking part had already overcome obstacles in their lives. It was an inspiration.

“It was hard but was all about team work and helping and encouraging each other. No one was alone – and at every obstacle along the course, as I thought, ‘I can’t do this’ there was a mum doing something that scared her whether it was heights, or deep water or tunnels. And they all did it! And that made us all tougher.”