This backpacking trip is a very accessible hike.
The road to get to the trailhead is paved and the hike to Ice lake is 9 miles in (18 miles total)
You can add some miles (and a lot of elevation) if you add a day hike to the Matterhorn. Second tallest to Sacajawea. When I say it takes 3 hours to get up and 30 minutes to get down.. I’m not joking. Unless you’re an ultra runner who can handle high intensity at elevation, this will take some time. Well worth it for the views and ice lake will be waiting for you at the bottom.
Photos are from August 2018 and July 2019... notice the snow in July. Couldn’t do the added day hike that time.