This is my favorite hike of all time! we did it back in April, so it was much cooler temperature wise, and no bugs at the time. We did the entire loop. The whole trail. 15 miles round trip. oh my gosh make sure you have good shoes on!! We only expected a 7 mile hike... we didn't realize there were 2 trail heads. The trailhead up Hwy 2 further East is the better one, more stuff to see. There are some switchbacks if you choose to take that route, but other than that, this is a very easy hike once you get past the initial uphill incline to the trail, although this is the Western trailhead, not sure about the eastern one, we turned around at what's left of the little town up there, just past the tunnel/snowshed thing. Amazing hike. There is so much to see!! Bring lots of water!