Aaron Crook: winner of the 6633 Arctic Ultra 2025

Aaron Crook is no stranger to extreme endurance, but his recent victory at the 6633 Arctic Ultra — a 620km foot race through brutal Arctic terrain — took his limits to an entirely new level. In this episode, Isobel and Ron dive deep into Aaron’s preparation, mindset, nutrition, and the brutal realities of racing in temperatures that can drop below -30°C.He shares the highs, the hallucinations, the problem-solving, and the personal transformation that happened mile by frozen mile. Whether you're training for your first 50k or chasing your own wild ultra dreams, this conversation will light a fire in you.