Endurance was the three-masted barquentine in which Sir Ernest Shackleton and a crew of 27 men and one cat sailed for the Antarctic on the 1914–1917 Imperial Trans-Antarctic Expedition. It was launched in 1912 from Sandefjord in Norway; three years later, it was crushed by pack ice and sank in the Weddell Sea off Antarctica. All of its crew survived.
Designed by Ole Aanderud Larsen, Endurance was built at the Framnæs shipyard in Sandefjord, Norway, and fully completed on 17 December 1912. She was built under the supervision of master wood shipbuilder Christian Jacobsen, who was renowned for insisting that all men in his employment were not just skilled shipwrights but also be experienced in seafaring aboard whaling or sealing ships. Every detail of her construction had been scrupulously planned to ensure maximum durability: for example, every joint and fitting was cross-braced for maximum strength.
The ship was launched on 17 December 1912 and was initially christened Polaris (eponymous with Polaris, the North Star). She was 144 feet (44 m) long, with a 25 feet (7.6 m) beam, and measured 348 tons gross. Her original purpose was to provide luxurious accommodation for small tourist and hunting parties in the Arctic as an ice-capable steam yacht. As launched she had 10 passenger cabins, a spacious dining saloon and galley (with accommodation for two cooks), a smoking room, a darkroom to allow passengers to develop photographs, electric lighting and even a small bathroom.
On 9 March 2022, 107 years later, it was announced that the wreck of Endurance – now designated as a protected historic site and monument under the Antarctic Treaty[2] – had been found 3,008 metres (9,869 ft) deep, in "remarkably good condition", by researchers aboard the icebreaker S.A. Agulhas II.
