Located in Mt Rainier National Park, the Skyline trail begins at the Jackson Visitor Center in Paradise, Washington. This is a beautiful hike and not too strenuous at all.
Conifers thin out and the trail rolls over the open alpine spaces. This means there is less obstruction for long distance views, except for the massive arms and peak of Rainier itself. In terms of fauna, you can find Marmots going about their business. I’ve seen deer in the area before too.
Along the way you’ll see waterfalls and the ever present Rainier. In October the bushes and ground cover turn bright and rusty colors that contrast nicely with the darker evergreens. Of course, Mount Rainier always has a white crown no matter what time of year you go.
The hike starts at the visitor center and loops for about 5 miles with wide open views most of the way. There is plenty of parking at the visitor center as well as lodging and camping options throughout the park. Here’s a trail map, if you’re curious.