Uploaded April 2016 | Updated September 2026, 11 hours ago

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Watch the three-part Britain's Treasure Islands documentary series on BBC FOUR, starting Tue 12 Apr 2016 21:00. (repeated Wed 13 Apr 2016 20:00).

The UK Overseas Territories are Britain's Treasure Islands. Their treasure is not gold or silver, but over 1,000 unique plant and animal species, unique cultures and a wealth of history.

Join naturalist Stewart McPherson in a journey to visit every one of the UK's overseas lands scattered across all seven seas.

In this teaser reel, we receive an overview of the Britain's Treasure Islands documentary series.

For transmission details, visit the BBC4 website (www.bbc.com)

Visit BritainsTreasureIslands.com for more information.