Nancy Lake Cabin 4
This is the largest cabin I have seen in Alaska. It would be great for large groups. In mild weather you could have a boat or plane at the dock. There is also a huge covered deck. The canoes in the picture do not come with the cabin. When I landed here there was a family group of about 20 which fit with no problem. The kids were sleeping outside in tents.
Cabin info - http://dnr.alaska.gov/parks/aspcabins/nancylakecabin4.htm