Coral City - Episode Guide

Never-before-seen underwater footage of marine life, seascapes, and animal behaviours of the Great Barrier Reef.

As summer arrives, supersize sea snails try to fend off an invading gang of coral-hungry starfish and more

Footage of the Great Barrier Reef during the season of Autumn, as the coral streets cool down.

As winter descends, life on the bustling reef slows down. Reef sharks and octopuses meander, and there's a look at a coral oasis atop an old shipwreck.