Also, when you get to Skagway, go to the visitors center and you can get a trail map that shows all the trails. It gives directions on how to get there if you don't want to use your maps app. I wish I still had my map to show you but I gave the map to a crew member.
We also walked to the Gold Rush Cemetary and Reid Falls. That was over 5 miles round trip. It was a beautiful falls that we enjoyed. That is also on the map.