Ghost Ship of the Great Lakes Expedition Unknown : Season 6 Episode 5
TV-PG (self-applied) Travel Channel 1h 00m
Aired: May 8th, 2019 @ 9:00 PM EST on Travel Channel
Josh Gates tackles an enduring maritime mystery, the first ship to be lost in the Great Lakes, the Griffon. Using a state of the art two-man submersible, Josh dives in to find a ship so elusive it's known as "The Holy Grail of Shipwrecks."
