Journey to the Titanic wreck site to mark anniversary
14 April 2012 Last updated at 09:53 BST
It has been 100 years since the Titanic hit an iceberg and sank in North Atlantic, with the loss of more than 1,500 lives.
Now, in a special voyage to mark the anniversary, relatives of some of those who perished are travelling to the site of the wreck.
John Kay reports from aboard the MS Balmoral.