Poster of Cast and Crew in Barrier Reef - The Tunnel (Season 1 - Episode 31) - The Tunnel

Barrier Reef - Season 1 - The Tunnel (Episode 31)

Plot: When the roof of a cave below the Great Barrier Reef collapses and traps one of the Minus Five divers, the others have to work against time to rescue him.
Episode Aired On:
Friday, September 10 1971
53 years ago