21 hours ago

We were here visiting from the east entrance right after half the park was closed due to fire on the west side (still a thing...”indefinitely” from a forest ranger) so our trail choices were limited to half the park. BUT this is a fantastic trail. We lucked out that we were “protected” in a valley from the wildfire and actually had pretty non-hazy views.
So there’s a lot of different approaches to this one. You could be a rockstar and do an out and back: that will be about 25 miles.
Also you could do a point-to-point from either trailhead and walk the GTTSR back to your car and add about 2 more miles of an easy, paved walk (we only had to wait about 10min for a shuttle in the afternoon, though)
You could start at Sunrise Gorge and hike to Siyeh Pass trailhead (both off GTTSR) and then shuttle back to your car.
On the advice of others we did Siyeh Pass to Sunrise Gorge and shuttled back to SP.
I’m not sure which I feel is the best... SP to SG was a shorter but more elevated ascent toward the summit (about mile 4-5) and much more forest covered so softer trails.
SG to SP was much more rocky trails, less covered due to past fire clearing and then a slower ascent to the summit.
The downhill we took on the SG side was much harder on the knees due to it being longer (softer ascent) and more rocky. So we would have probably preferred to descend on the SP side if we did it again, BUT we appreciated the steeper but shorter elevation gain on the SP side vs the SG side (get it over with, right?!) ... so all in all I’m going to say what’s better is whatever you prefer. MOST were doing SP to SG but we did meet one wiley older ex park ranger that was going SG to SP (he recommended) and couldn’t figure out why until we got toward the end.

One thing to note whichever way you choose...it’s a beautiful trail. Haven’t done highline yet but this one shouldn’t be missed. Lots of different “environments” to walk through: dense forest, open meadows, rocky summit... And lots of things to see: glacier, waterfall and even the backside of the summit was an amazing view. Also our hike was clocked in at 12.3 miles NOT 10.5 according to the signs. (Took us about 6 hrs with minimal stopping)
If you’re in glacier anytime in August to the end of the season and can’t access the west side, this is an excellent day hike. Shouldn’t be missed for anyone but especially now with the wildfires.