For three summers after I graduated from high school I worked at Camp Treetops, an incredible residential summer camp located in the High Peaks region of the Adirondack Park. During the rest of the year, this place is a private school for grades four through eight.
If I was infinitely rich, I would a) do my darnedest to become a permanent staff person there and b) send every child I could to be a summer camper. It is THE BEST experience I can imagine for any child anywhere.
It is (or at least was) the highest elevation working farm in the state, complete with organic veg and livestock, all of which the campers (and school kids) take care of. There are no electronic toys/games. Free range children - everyone running around barefoot. Everyone learns to ride a horse, sail a boat, and climb a mountain. Everyone has chores. Fun is homemade.
Check it out: