What do you have planned?
I live on an island in Alaska. We are always well stocked with supplies because you never know when the barge won’t show up or the weather will keep you from leaving. There is plenty of wild fish and game. We grow some vegetables in green houses. We all have guns and boats and we know who belongs here and who does not. Anyone who comes in must come by boat or floatplane. Added bonus: My boat will take me anywhere in the world I want to go. Australia? Pitcairn? Tonga? No problem. In extreme circumstances, I can stay at sea for a year if necessary.