At Newhalem, North Cascade Visitor Center, a short stroll leads to a view of Picket Range (most of the peaks are above 7000ft, the closest is Pinnale Peak at 6819ft). A mile or two east is the Gorge Creek Dam. A short walk follows the creek up a couple of cool shaded cascades.
Between milepost 131 & 132, Diablo Lake Overlook is a must stop, with Colonial Peak (7771ft) to the south and Davis Peak (7051ft) to the north above the blue green reservoir. At mile 162 Washington Pass Overlook (5477ft) is a cliff overlooking some erosive rocky facades. 
On the way back, did a wheelchair accessable 1-mile trail to Rainy Lake.
