- The Going-to-the-Sun Road: This road cuts through the middle of the park and is absolutely stunning. Unfortunately, the majority of the road was closed when we were there because of snow. So my main recommendation is to wait until late June or even early July before going to Glacier National Park. The snow takes forever to melt.
- Two Medicine Lakes: These gorgeous lakes are right of the base of some massive mountains. I seriously thought I was staring at the Matterhorn.
- Lake McDonald: This giant lake has the most glassy water, and the mountains are incredible.
- Weeping Wall: I probably saw this the first time I went to Glacier National Park when I was 13, but this was on the Going-to-the-Sun Road portion that was closed. It is amazing, though -- just google pictures of it.
From Idaho, take Highway 20 all the way to the Montana border and then turn onto ID-87 (which becomes MT-87). From here, there are several ways to get to Glacier National Park. I would recommend the scenic route we took, through Butte, Missoula and then around the east side of Flathead Lake (the west side is not nearly as scenic). To do this, take W-287 N to I-90 W, and then take US-93 to MT-35. Be sure to make lots of stops along the way, especially in Missoula and Bigfork, which is on Flathead Lake. It's a long trip!