Hike the shortest route to Tray Mountain from Tray Gap along the Appalachian Trail. For a 1.5 mile hike roundtrip, you get views to both the north and south of the summit, making this an excellent shorter day hike.
Getting to Tray Gap will be a challenge if you don't have a vehicle with some ground clearance or 4-wheel drive, but I've been told sedans should be able to make it from the west side of Tray Mountain Road coming from Helen.
The AT crosses the gap on the south side. You'll be heading north on the AT, in this case, west. You should immediately pass an info board (with nothing on it at the time of this hike) and be heading uphill or you're going the wrong way.
Ascend up a few switchbacks, coming to a view to the north at .6 miles. Just another tenth of a mile further you'll summit Tray Mountain, having climbed 600 feet in .7 miles making for a steep rate of over 800 feet per mile. Along the way are numerous erosion control water drain off paths.
The short hike is worth it with a good view to the south and just a few feet further down the trail, another view to the north. If you're looking for something longer, try Tray Mountain from Indian Grave Gap or from Unicoi Gap for a much more epic hike.