The Muir Trail area on the north side, downstream from Big Bend parking lot, is good.
You have to watch your footing as you can be stepping from submerged rock to rock, with deep holes between.
Some of the best hatches I've ever seen were on the Hiwassee. Good dry fly fishing when hatches are on.
The mass of men lead lives of quiet desperation, unless they fly fish... with apologies to Thoreau