Grewingk Valley Professional Review and Guide
"A variety of hikes, from an easy half-day to a rugged 2-to-3-day backpack, to Grewingk Lake, Grewingk Glacier, and alpine ridges overlooking the valley. Choosing your destination(s) and water-taxi drop-off and pickup points are the most complicated logistics about this trip. Probably the easiest way to see the whole area is to start at Glacier Spit, hike to Grewingk Lake and Glacier, and then hike out via the Saddle Trail, with a side trip to the Alpine Ridge.
For a day trip on the Alpine Ridge, the Saddle Trail is definitely the better choice; starting at Glacier Spit is better for day trips and backpacks in and north of the Grewingk Valley. A popular day trip is a drop-off at Glacier Spit, a hike to the lake and then south over the Saddle Trail, ending with an afternoon pick up at the Saddle Trailhead. If you want to camp near Glacier Spit and day-hike from there, the spit is a fine beach-camping area (bring water)."