Follow a freshwater cave diver and visit virtual reality training simulators.
This episode explores the art of taking a giant 300-foot ship from shore to sea.
Scientists find a treasure trove of ancient bones from the Mastodon's era.
Travel with cinematographer Al Giddings in a specially equipped photo-sub to shed a light on the Titanic!
Travel on an icebreaker as it attempts a run at the North Pole. Visit a full-time underwater colony.
This episode focuses on spear fishermen and the world's first invisible boat.
