When you pack up your city apartment and move to the country, you can call it rustication — it's a term that can have positive or negative associations, depending on how excited you are about living in the boonies.
The noun rustication is good for what your grandfather did when he retired to a rural town to become a gentleman farmer. You can also describe your grudging attendance at a summer camp deep in the Maine woods as your own rustication. Whether by choice or banishment, rustication is a move to the countryside. The Latin root is rusticus, "open land or country."