Stay in the salt breeze if not actually oceanfront in a swampy, tropical climate such as that. Disease and the critters that serve as a vector will become a problem again, in the event of a breakdown. Everyone wealthy enough to leave for the southern Blue Ridge during the summer did so, back in the day. From Charleston, Savannah, Mobile, all the old southern lowland cities. Worked at several mountain resorts while in college, that had their beginnings as summer retreats for exactly that reason. Well, the heat and humidity too, but they go hand in hand.
Many people in FL have cabins or 2nd homes up there. Most go once in a while in the summer or for a White Christmas if it snows. Without going into details, we have access to a large 4 bedroom cabin in NE GA if needed but I like it there for a week or two maybe once or twice a year. I’ll take the ocean and take my chances. If I ever need to go elsewhere, I have 4 other options. 2 outside the US, 2 inside, plus staying right where I am. I’m guessing everyone else would end up here when the food ran out and the cold weather got to much to take.
SE breezes are natures repellant most of the time.