Rustic would be the best description. If you know what the state park cabins are like, something like that but not a state park or a cabin farm. Private, quiet, homey, and simple. The boys love streams but not required. I would love to have the option to detect if possible.
I know they rent out old rangers cabins here in the PNW. A lot of them are very rustic and simple. Most don't have power. Space is kinda cramped in some. I just googled to find ones around here.