The Emerald Lake hike starts right from the Bear Lake Trailhead, situated close to the end of Bear Lake Road.
From Bear Lake, the trail proceeds with a climb thru to Nymph Lake. Proceeding from here, at around 1.1 miles from the trail point, you will get to a junction that leads to Lake Haiyaha.
To keep up with the route to Emerald Lake, you should turn right & walk thru to the foot of Dream Lake. Once gone past Dream Lake, at around 1.8 miles & 10,110 ft elevation, you will reach Emerald Lake. Enjoy the view!