Chukkung Ri (5520m) is another classic trekking peak in the Khumbu. Located just behind the town of Chukkung, the trail beings at the obvious trailhead on the north side of town, passes through a small rocky plateau (often full of grazing yaks), and then begins a steep and somewhat sandy climb up. It's pretty much straight up, with a small flatter shoulder about halfway up, and then the steep trail continues to a ridge around 5350m. From there, you can either follow the trail directly along the ridge, or else cut down on the right-hand side just below the ridge, which often keeps you protected from strong winds. From there it tops out at 5520m, with a whole bunch of prayer flags on a big stupa.
The view is tremendous of the Nuptse/Lhotse ridge/face as well as Ama Dablam and Makalu across the valley. It is a fantastic route and a great acclimitization day if you're heading to bigger mountains!