My parents bought some property on lake Wateree (South Carolina) and they and two other couples set up crude cabins along with a luxury fish cleaning/frying station. The other less-than-luxury "facility" was what they dubbed the Half Moon Hotel. I'll leave that as self-explanatory.
Of course you have to consider the changes from then till now. Who do you know could by lake front property, construct a crude cabin (without obtaining permits) with no running water or paved road, and even construct an out house (still no permits). Construct an out house in your own back yard and see how far you get with the homeowner's association or town council.
That begs the question: are we evolving or devolving. There was a time we could take care of our most necessary functions without permission from the government. Now somebody from the government has to inspect it first.
There are places, but usually zoned, and an out house, in the ground, a problem