Famed British polar explorer Sir Ernest Shackleton's last expedition ship Quest has been found at the bottom of the Atlantic off Canada's coast. The shipwreck was found in the Labrador Sea at a depth of 390 meters (1,280 feet). Shackleton went down in expeditionary legend after an epic escape he and his 27 companions made after another of his ships, Endurance, sank in icy seas off Antarctica in 1915. The explorer died aboard Quest seven years later aged 47. #AFP 🎥 Royal Canadian Geographical So