ie Andrea Doria, Antartica Explorer and so on
One the dead weight of a liner like the Andrea Dora would require huge structures energy to hoist. The cost to do that would be more than the worth or value of bring the vessel up.
Although I do not know too much about the Andrea Doria. But, I do know a lot about the Antarctica Explorer. Cruise lines make the decision to not bring up sunk cruise liners because it will probably cost more money to bring up the ship (both ships and many other sunk liners are 1000+ feet below the surface), tow it to dry dock, and completely refurbish the ship than the actual ship is worth. Sometimes cruise lines will opt to bring up a cruise liner if it is will still be make money. this usually only happens when there is a low depth sinking. Also cruise lines might opt out to bringing up a ship because people would not want to sail on it. I know I wouldn't book a cruise on a ship that I knew was at the bottom of the ocean. Hope this helps.
