Artist impressions of the ships "HMS Erebus" and "HMS Terror" used in Sir John Franklin's ill-fated attempt to discover the Northwest passage. Getty Images
British Royal Navy captain Sir John Franklin set sail in 1845 along with 128 men with enough provisions for three years.Getty Images
The 19th century "HMS Investigator," which left Britain in 1848, was abandoned while searching for Franklin's ships.Courtesy Parks Canada/ Brett Seymour
Parks Canada discovered the wreck of "HMS Investigator" last year. It's hoped the site will provide vital clues to solve the mystery of Erebus and Terror.Courtesy Parks Canada/ Brett Seymour
Parks Canada set out in August to try to locate "HMS Erebus" and "HMS Terror."Courtesy Parks Canada
It's still not known where the two ships are despite 160 years of searching.Courtesy Parks Canada
Ryan Harris from Parks Canada says the area in which the ships were last seen is extremely remote.Courtesy Parks Canada