Feel it’s my duty to mention living aboard a boat is an ideal platform for survival/retirement for those who love the water. Texting this from aboard my 30’ sailboat in FL.
I thought of that but sailing is too difficult and a diesel motor needs diesel fuel. Plus a steady diet of fish could get dull.
I've considered a houseboat up some of our inland waterways as a 'bugout' location. It may still be a good idea but, I've decided I'm getting to old for that.
Good luck. There are other FReepers who have sailboat refuges.