A scientific expedition will next year try to find the Endurance, the ill-fated ship of Antarctic explorer Sir Ernest Shackleton.
The vessel sank in 1915, crushed by sea-ice in the Weddell Sea and lost in 3,000m of water.
Shackleton and his crew were forced into lifeboats to make an extraordinary and heroic escape across the Southern Ocean.
UK researcher Prof Julian Dowdeswell will lead the international effort.
He expects to have the cruise on station in January/February.
Locating the shipwreck is not the primary goal of the expedition; the major objective is to visit and study the Larsen C Ice Shelf, which last July calvedone of the biggest iceberg ever recorded in Antarctica.