Episode 1
Water World of Wales
Series exploring the hidden corners of the UK. In the Brecon Beacons, Adam Henson tries to master fly-fishing and Ellie Harrison visits Britain's deepest cave.
TV series
Secret Britain
20103 seasons7.0 / 10
Exploring the hidden corners of the UK in search of the best the countryside has to offer.
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Checked Jul 22, 2026
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Synopsis
Exploring the hidden corners of the UK in search of the best the countryside has to offer.
Season 2 episodes
Watch options above are for the show and may vary by season or episode.
Episode 2
Mysterious Moors of Yorkshire
Series exploring the hidden corners of the UK. In North Yorkshire, Adam Henson discovers the remains of a forgotten glass-making industry.
Episode 3
Hidden Highlands of Scotland
Series exploring the hidden corners of the UK. In Scotland, Ellie Harrison probes a monster mystery at the heart of Britain's deepest water.
Episode information updated Jul 22, 2026
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