It's been more than 160 years since Sir John Franklin's ill-fated Arctic voyage, in which two of his ships, the Erebus and the Terror, were deserted at sea after being trapped in the ice. The wreckage was discovered earlier this month, a find that John Geiger, chief executive officer of The Royal Canadian Geographical Society, called "one of the two most important undiscovered shipwrecks in the world."
This is the first footage of one of the expedition ships -- it is unclear which one -- captured by? Parks Canada's underwater archaeology team.