In 2007, the legendary 6633 Arctic Ultra was born with the launch of the 6633 Classic 380, a race that pushed the limits of human endurance in one of the harshest environments on Earth.  Over the years, this iconic race expanded with new challenges like the 6633 Yukon Ultra, solidifying its place as one of the world’s toughest Arctic races.

Now, with the creation of 66 Adventure, we’re on a mission to challenge, inspire, and empower adventurers to go beyond the limits of the ordinary.  While our roots are in the frozen extremes of the Arctic, the future of 66 Adventure lies in diverse landscapes across the globe.  From the icy extremes of the Arctic to the sun-soaked trails of Fiji and the untamed jungles of Belize, our races are designed to test your resilience, endurance and spirit of adventure.