1. The Kermadecs

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. 30 October 2016. 45 min

The Kermadec Islands are in New Zealand's northern-most waters, and during a spring plankton bloom triggers a carnival of life, from tiny coral polyps to the largest humpback whales.

2. White Island

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. 6 November 2016. 45 min

Around White Island, common dolphins, Australasian gannets and local reef residents adapt to survive the toxin conditions on New Zealand's most active volcano.

3. Chatham Islands

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. 13 November 2016. 45 min

New Zealand's remote Chatham Islands attract roaming predators from all over the South Pacific - but the resident blue cod and brown skuas might just be the most ferocious of all.

4. Fiordland

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. 20 November 2016. 45 min

In the wettest corner of New Zealand, where alien ocean creatures flourish under a freshwater layer, crested penguins struggle to raise their chicks in the midst of a harsh Fiordland winter.

5. Auckland Islands

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. 27 November 2016. 45 min

Every summer, massive congregations of New Zealand sea lions and giant spider crabs descend upon the sub-Antarctic Auckland Islands to carry out their violent breeding rituals.

6. Banks Peninsula

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. 4 December 2016. 45 min

In Banks Peninsula's bays, tiny penguins, Hector's dolphins, and wetland birds experience a dramatic spring and summer as the epic migration of an ancient longfin eel concludes.