According to my GPS app the winter track up the hillside from Dream Lake is slightly off from the actual trail, but connects up with the trail within 1/4 mile. Also, about 1/4 mile from Haiyaha the trail peters out and the established track goes straight downhill to the lake. We couldn't figure out where the actual trail was supposed to go so we followed the tracks; it's very steep but will get you to the lake.
The Fern Lake trail passes Arch Rock formations, The Pool, and the cascading water of Fern Falls. Two backcountry campsites are located near the lake, and two more are closer to the trailhead. Odessa Lake has two approaches: one is along the Flattop trail from Bear Lake while the other is from the Fern Lake trailhead, along which are Fern Creek, The Pool, Fern Falls, and Fern Lake itself. One backcountry campsite is available. Other lakes are Jewel Lake, Mills Lake, Black Lake, Blue Lake, Lake of Glass, and Spruce Lake.
If driving Trail Ridge Road or Old Fall River Road is on the top of your list and you have limited time, you may want to enter the park via the Fall River Entrance on the park’s east side. It also is just a few minutes from Estes Park’s downtown. You’ll reach Trail Ridge Road a lot faster than those waiting in line at the Beaver Meadows Entrance during the summer and fall seasons.