SS United States' final chapter: Location: Mobile, Alabama, for preparation. Final Destination: A planned artificial reef off the coast of Destin-Fort Walton Beach, Florida. Purpose: To create essential marine habitat and attract divers and anglers to the area. Preparation: The ship is being cleaned and renovated in Mobile, with environmentally unsafe materials being removed. History: The SS United States was the fastest ocean liner to cross the Atlantic, a record it still holds today. - SS Unit