Submerged in the frigid waters of the Weddell Sea, the famed vessel sank after getting stuck in pack ice in 1915. Some experts have raised concerns that the wooden ship might eventually decay.

The search for Shackleton's ship was an "extra ... lifeboats across the pack ice in those places where they couldn't sail on the sea surface. They managed first to get to Elephant Island, at ...

“Hurley gets this flare gun ... Endurance became stuck in pack ice within weeks of setting off from South Georgia. The ship, with the crew on board, drifted for months before the order was ...