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Documentary

All Episodes of Iolo's River Valleys

Browse all 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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BBC One Wales
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Season 1

  • The Rheidol Valley
    N/A/100 votes

    The Rheidol Valley

    Season 1 Episode 1 - Aired 5/6/2025

    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.

    Director: Unknown

    Writer: Unknown

  • The Dyfi Valley
    N/A/100 votes

    The Dyfi Valley

    Season 1 Episode 2 - Aired 5/13/2025

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

    Director: Unknown

    Writer: Unknown

  • The Conwy Valley
    N/A/100 votes

    The Conwy Valley

    Season 1 Episode 3 - Aired 5/20/2025

    Iolo explores fascinating woodlands, searches for Curlew chicks and uncovers the history of an ancient burial chamber nestled in the beautiful Conwy Valley.

    Director: Unknown

    Writer: Unknown

  • The Vale of Clwyd
    N/A/100 votes

    The Vale of Clwyd

    Season 1 Episode 4 - Aired 5/27/2025

    Iolo Williams explores the Vale of Clwyd, from coastal lizards and rare butterflies to a tame raven and elusive red squirrels, uncovering the valley's hidden wonders and wildlife.

    Director: Unknown

    Writer: Unknown