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Iolo's River Valleys

Series 1 · 4 episodes · May 6, 2025

Iolo Williams explores four of Wales’s most stunning river valleys.

  1. Iolo's River Valleys season 1 episode 1 still

    Episode 1

    The Rheidol Valley

    May 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.

  2. Iolo's River Valleys season 1 episode 2 still

    Episode 2

    The Dyfi Valley

    May 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.

  3. Iolo's River Valleys season 1 episode 3 still

    Episode 3

    The Conwy Valley

    May 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.

  4. Iolo's River Valleys season 1 episode 4 still

    Episode 4

    The Vale of Clwyd

    May 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.