We're arriving in the Denali area 4pm-ish via a Princess cruisetour on July 24. I'd like to hike the Savage River area that evening. I prefer the Savage Alpine Trail, one-way of course, over the Savage Loop Trail. I'm concerned about a late enough shuttle back to the WAC/Princess Lodge (I have the Shuttle schedule) if we were doing the Alpine Trail. We're in our early 50s, in decent shape. Does it really take 3 hrs? Would we have enough time to do the 3hr hike & catch the free shuttle back to WAC? Which direction should we go on the Alpine Trail? Start at Savage River? or at Mt Vista? The next morning, we have the Tundra Wilderness Tour booked. That day is shot, as far as hiking. Thanks!