The Belly of the Dragon is quite the adventurous, scenic, little hike. The tunnel goes under Highway 89 and is used a as a drainage for the upper canyons that feed into the North Fork River. Therefore, do not enter into the tunnel under any rainy conditions. There are a few spots or rock scrambling to get up and through the tunnel. Through the tunnel is a short hike, you may continue up the wash for about 4 miles, it ends at a beautiful little slot canyon.