‘They're never going to find it': The hunt for wreck of the Endurance 

Irish woman Ruth Johnston tells Esther McCarthy about her Disney documentary on the search for the ship that had been sailed by Ernest Shackleton and Tom Crean 

One of Frank Hurley's pictures of the stricken Endurance and, right, Irish documentary producer Ruth Johnston.

It was the legendary feat of endurance and perseverance that saw a crew survive in brutal conditions for over a year.

The wreck of Endurance - the ship crewed by Ernest Shackleton and Irish seamen including Kerry's Tom Crean and Cork man Timothy McCarthy - was thought lost forever to the ice and sea when it became trapped in pack ice and later sank in November 1915.