1. Asia

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. 15 February 2013

The series begins with a exploration underneath the Asian seas.

2. Australia and Oceania

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. 22 February 2013

This week we explore underwater across Australia and Oceania.

3. South America

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. 1 March 2013

This episode focuses on the underwater wildlife in South America.

4. Europe

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. 8 March 2013

This week we see the show explore the European oceans.

5. Africa

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. 15 March 2013

This week we explore the oceans of Africa.

6. North America

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. 22 March 2013

This week the show explores the Northern American sea.

7. The Antartic

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. 29 March 2013

The final episode explores the underwater wildlife of the antartic.