Okaloosa County commissioners voted in October to buy the SS United States for $10 million and use it as an artificial reef. It’s estimated that the economic benefit will be $3 million a

The luxury liner SS United States completed its journey Monday from South Philadelphia to Alabama, where it will undergo preparations before it is sunk in the waters off Florida's Gulf Coast to become an artificial reef.

The SS United States began its final approach into Mobile, Alabama, Monday morning, marking the end of the first leg of its journey to becoming the world's largest artificial reef.