i did GA 2 times in 7 days, taking a rest day each time. i would think that is pretty common. it amounts to 76 miles. a lot of folks take as many as 10 or 11 days, not because they can’t do more, but because hiking GA as the start of a thruhike is a thing most just wanna relish.
about 90 miles to fontana…8 days
GSNP= 70 miles give or take … 6 days but my weather was pristine the folks before me had ice the folks after had snow. i did do a 24 mile day out of the smokies, which i doubt many do, and am kinda wondering if i would ever again.
the point of battle hardenness comes into play also. 2 section hikers started GSNP within minutes of me, they quit in Gatlinburg, tho they kept up for the first 4 days. it just all depends like bilko said.
on any of the selected areas you might hike, there are a couple of pull out spots, only one in the smokies, if you don’t count side trails.
you might also consider davenport gap to hotsprings, about 45 miles that is not so challenging for a group, and still you have some nice places to enjoy along the way. i did it in 2 days most take 3.
or hotsprings to erwin…aprox 80 miles i enjoyed miss janets and hot springs and if ya wanna familiarize yerself with the AT you can’t miss meeting miss janet… i did this section in 4 days, but wished i’da taken longer. weather was snow, cold, and dreary for a bit, but the walk is pretty sweet.
you can churn out the miles if ya feel like it, and at times pushing past a shelter may be just whatcha wanna do… at other times stopping before your projected destination may be your very best for a day, don’t sweat it.
burn