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

Booking link -  https://alaskastateparks.reserveamerica.com/camping/nancy-lake-state-recreation-area/r/campsiteDetails.do?contractCode=AK&siteId=1015&parkId=1180523