Mark catches up with friend Lucy Gossage who decided she'd like to have a stab at the Winter Spine Race.

The Winter spine race is a brutal 268 miles following the beautiful Penneine Way. It's already regarded as the most difficult endurance running events in the UK.

Lucy is no stranger to suffering as she was one of the best long course triathletes in the world. Listen to the Lucy describe hitting the very limits of her endurance and resilience.

Lucy also started Move against Cancer charirty. If you'd like to donate hit the link below.

https://www.justgiving.com/page/lucy-gossage-spine-move