In the heart of Siberia's Yakutia region, runners brave what's been dubbed the world's coldest marathon. Facing temperatures as low as -53°C, the Oymyakon marathon provides an exceptional display of human endurance, as part of a select group of extreme running races across the globe.

Among these races, the Susitna 100 in Alaska stands out as a grueling 100-mile ultra-marathon where runners face sub-zero temperatures and snow-covered trails. Similarly, the White Continent Marathon in Antarctica presents a formidable challenge, with competitors enduring freezing temperatures and biting winds on icy terrain in one of the world's remotest locations.

Equipped with specialized gear to combat the cold, Preparation is essential for these extreme races - the right gear can mean the difference between success and failure.

Despite the daunting challenges, runners continue to be drawn to these races, motivated by the desire to test their limits and conquer the elements. Their resilience serves as a testament to the remarkable capabilities of the human spirit in the face of extreme conditions, and a reminder to keep pushing onward.

Watch more on YouTube here.