S.S. Sapona

SS Sapona was a concrete-hulled cargo steamer originally created as part of the World War I Emergency Fleet. As with the other twelve concrete ships that finished construction for the Shipping Board, she was finished too late for wartime service. She briefly hauled cargo for a time before being moved to Miami to serve as storage. She was later moved to Bimini, where her wreck continues to serve as an artificial reef and as a popular dive site.