Great Inagua is the third largest island in the Bahamas at 596 sq mi ( 1544 km2 ) and lies about 55 miles ( 90 km ) from the eastern tip of Cuba .
Great Inagua is the third largest island in the Bahamas at 596 square miles ( 1544 km ² ) and lies about 55 miles ( 90 km ) from the eastern tip of Cuba .