http://gcaptain.com/photo-sunken-sewol-ferry-raised-three-years-after-disaster/
This was a sad story. At least the captain of the ferry was found guilty of homicide in 2015 and jailed for life. Prayers to the victims and related famlies and friends.
It’s amazing they were able to lift a corroded, 6,800-ton ferry lying more than 40 meters (130 feet) undersea, keeping it in one piece. 
Here is another story about the lift operation.