You become a little bit delirious at times.”That night on the mountain was not the first time Jackson had strayed perilously close to death.
Five years ago, while still a professional rugby union player, he dived into a shallow pool on a hot day and broke his neck.
Then, to mark the one-year anniversary of his accident, Jackson set himself the goal of climbing Mount Snowdon – the highest mountain in Wales at 1,085 meters – even though he was still using two crutches at that time.
Confronted by unfavorable snow conditions, Jackson and his team had to navigate difficult routes across the glacier, setting up camps as they went.
He established the charity Millimeters to Mountains (M2M) with his wife, Lois, and friend and fellow former rugby player, Olly Barkley.