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Iolo's River Valleys poster

Iolo's River Valleys

2025 2 seasons · 8 eps English
Documentary
Synopsis
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Iolo Williams explores four of Wales’s most stunning river valleys from sea to source, uncovering their hidden wonders and remarkable wildlife.

“Some stories are better left unspoiled.”

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Episodes

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Fun facts 🍿

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MONEY

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2 seasons · 8 episodes total · ~4 per season.

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RUNTIME

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Short-form: under 10 episodes, so binge-completable in a weekend.

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RUNTIME

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Roughly 4 hours end-to-end — 1 full workdays of television.

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ERA

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Aired from 2025 to 2026 — a 1-year run.

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WILD

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TMDB status: "Returning Series".

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AWARDS

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Show type: Documentary.

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CAST

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Airs on BBC Two, BBC One Wales.

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Cinephile deep dive

The technical file

Seasons
2
Total episodes
8
Avg episode length
29 min
Premiered
2025-05-06
Last aired
2026-05-27
Languages
English

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