Sonju Lake is just a short hike from the Sonju Lake Road parking lot on the Superior Hiking Trail. It's a great spot if you're getting a late start on your trip or looking for a short ending at the finale. There are two campsites on Sonju and one is the star. This is not the one. It's fine but it's lacking the highlight of this trail section, Lilly's Island. The site sits on the lake but has little view from the actual site. Water access is so so but the views of the lake are lovely.