For me, I would load food, water, guns, and family into my truck and head to a nearby marina that has a massive floating dock. Occupy floating dock, boil water for extra water, fish and search nearby stores and restaurants for food. Barricade walkway to dock and if needed disconnect dock from shore.
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This is similar to mine. In a perfect world I would be camping out on the U.S.S. Intrepid in New York. Its in the water, but probably like 30-40 feet above it. The ship also has a massive interior, with bathrooms, kitchens, bedrooms and storage rooms (all without power of course). It was converted to a museum but I'd take the ramps off to deter zombies. Basically you would be in the eye of the storm. (Surrounded by one of the largest infected cities on earth, but still untouchable)