From the Sahara to the Artic: Training and planning for some of the most extreme ultramarathons in the world

Published: Nov. 28, 2018, 6 a.m.

Holly Zimmermann, mother of 4 and ultramarathoner shares her experiences with training, planning, and gear for some of the most extreme ultramarathons in the world.

Even if you're not into extreme races, her experiences are truly incredible and inspiring.