This is a wonderful hike from Adirondack Loj to Avalanche Lake in between Mt. Colden and Algonquin. You'll climb along ladders and bridges bolted directly to the cliff walls around the lake. The views up the slides and trapdike towards the top of Colden are incredible.
Heart Lake Adirondack Loj Trailhead:
From Exit 30 take Route 73 towards Lake Placid for 26.5 miles. Take a left onto Adirondack Loj Road and continue 5 miles to the Loj and the parking area. There is a $10 fee to park here for the day.
You are now at the end of your hike far below Mt. Colden at the south end of Avalanche Lake. You'll have great views of the trapdike running up the face of Colden above you. Relax for a bit at the lake then head back the way you came.