How are shipwrecks recovered?

How are shipwrecks recovered?

Shipwrecks are difficult to find. You need a boat with sonar and other special equipment. Remotely Operated vehicles on board the boat have cameras that send back pictures of ocean floor. Once a shipwreck is found, it may be possible to raise it off the sea bed by using winches and inflatable balloons. It is a difficult task that must be done very carefully.