Actress and world champion freediver Marina Kazankova is on a mission: to freedive the Great Barrier Reef. Able to hold her breath far longer than that average human, she takes on a series of challenges, from swimming with turtles and giant grouper, to diving down on ship wrecks and through hidden caves. Join her on her incredible  journey and see the Great Barrier Reef like never before.

Actress and world champion freediver Marina Kazankova is on a mission: to freedive the Great Barrier Reef. Able to hold her breath far longer than that average human, she takes on a series of challenges, from swimming with turtles and giant grouper, to diving down on ship wrecks and through hidden caves. Join her on her incredible  journey and see the Great Barrier Reef like never before.