Lower Flying Goose isn't much of a blue trail. The only things that make it a blue are that it has a short steep at the bottom and it is in and among other blue and black trails. To get to it go up the North Peak Triple and ski Upper FLying Goose. You can go up the Spruce Triple or the Duckling Double and hike up the little connector trail to the top of it and ski down that way, but I wouldn't recommend it.