Coming October 19, 2013. Known as “the coolest marathon on earth”, you die-hard TrailblazerGirl marathoners will love the Polar Circle Marathon. With part of the race run on the ice cap, it can still be very slippery, so make sure to follow the marked route on the inland ice. Such a sense of awe as you run through the serenely beautiful arctic desert past some of the ice caps oldest glaciers. Maybe you’ll even see reindeer and musk oxen grazing along the route.