The Gnar Gnar is simple fun. You run up the mountain and back down. Simple! It’s just 6-miles, but of course it isn’t easy as you climb up almost 2,000 feet in 3.5 miles and scream back down in 2.5. This occurs at Mt. Hood Skibowl and the spectators can watch you going up and coming back down on the Gnar Gnar trail. Fun!