We took the kids here a couple weeks ago. Camping off the grid in a Yurt. No electronics, running water or electricity.
They washed dishes in a river and used an outhouse. We cooked on burners outside and inside on a wood stove.
They whittled and played cards by candlelight.
Was a super fun experience and they actually loved it. We found it through hipcamp.com.
Life off the grid was a great experience!