Fodor's Expert Review Fern Lake Trail

Heading to Odessa Lake from the north involves a steep hike, but on most days you'll encounter fewer other hikers than if you had begun the trip at Bear Lake. Along the way, you'll come to the Arch Rocks; the Pool, an eroded formation in the Big Thompson River; two waterfalls; and Fern Lake (3.8 miles from your starting point). Less than a mile farther, Odessa Lake itself lies at the foot of Tourmaline Gorge, below the craggy summits of Gabletop Mountain, Little Matterhorn, Knobtop Mountain, and Notchtop Mountain. For a full day of spectacular scenery, continue past Odessa to Bear Lake (9 miles total), where you can pick up the shuttle back to the Fern Lake Trailhead. Moderate.