The Wolf River 100 miles east of the Yukon's capital of Whitehorse is one of the best rivers in the world to fish for grayling. The river is only accessible by float plane and visitors stay in rustic lakeside lodges. John catches several specimens approaching 3lbs. Wildlife includes bald eagle, bears, moose and wood bison. Fishing pro John Wilson is taking a float plane to the Wolf River, one of the world's best spots for grayling. It's a masterclass.