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The Worst Episodes of Iolo's River Valleys

BBC One Wales

Every episode of Iolo's River Valleys ranked from worst to best. Explore the Worst Episodes of Iolo's River Valleys!

The Worst Episodes of Iolo's River Valleys

Iolo Williams explores four of Wales’s most stunning river valleys from sea to source, uncovering their hidden wonders and remarkable wildlife.

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    #1 - The Rheidol Valley

    S1:E1

    Iolo Williams explores the Rheidol valley and looks for elusive pine martens. He’s also treated to views of red kites nesting in a village and explores a remote zinc mine.

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    Director:Unknown
    Writer:Unknown
  2. NaN/10(0 votes)

    #2 - The Dyfi Valley

    S1:E2

    Iolo Williams explores the Dyfi Valley, from Ynyslas dunes and Cors Fochno bog to Ospreys at Cors Dyfi and wild Beavers near Machynlleth.

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    Director:Unknown
    Writer:Unknown

Worst Episodes Summary

"The Rheidol Valley" is the worst rated episode of "Iolo's River Valleys". It scored /10 based on 0 votes. Directed by Unknown and written by Unknown, it aired on 5/6/2025. This episode scored 0.0 points lower than the second lowest rated, "The Dyfi Valley".