Feel the heat of summer's arrival as supersize sea snails try to fend off an invading gang of coral-hungry starfish and more ... Coral City. Episode 2. 50 min NOW.

Summer

Autumn

Spring

Discover the most fantastic city of them all lying beneath the waves, where romance and migratory commuters flood the coral reef's main highways.

Adapt or perish in the coral streets as higher-than-normal temperatures make autumn cooling (and survival) more difficult.

Get chills as winter descends, slowing down life on the bustling reef. Meander with reef sharks and octopuses, visit a coral oasis atop an old shipwre…

Winter

Take a spin through the Great Barrier Reef and discover how the four seasons profoundly impact this bustling underwater city.

Summer

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Season 1 Episodes4

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