Warm clothes are a must. March temperatures in Uummannaq average about minus-15 degrees Fahrenheit. In fact, it's best to bring lots of stuff, as the town, with only 2,800 people (and 3,000 sled dogs), doesn't actually sell any of the necessary fishing gear. (The Uummannaq hotel, home base for the event, will rent sealskin suits and boots to keep you warm on the ice, however.) Total cost to participate? About 3,450 Euros, or $3,869. That includes travel, accommodations, food and the competition. For more information, go to www.greenland guide.gl/sharkchallenge.