This loop might be on the shorter side, but the hike is more than worth it for the scenery. Start at Sahalie Falls, a 100-foot tall waterfall pouring into the river below and covering the moss-covered valley with cool mist. Continue down the trail, walking past the 70-foot Koosah Falls, and finish the first half of the loop at Carmen Reservoir. As you turn back along the other side of the river, take in the views of the surrounding old growth forest. You'll cross over a tree bridge to finish your trek across the river and back to the trailhead. Note: you'll come across a fair number of pathways leading off of the marked trail. Take them! You'll find some amazing, little-known lookout points.