Series 1 Plot
Iolo Williams explores four of Wales’s most stunning river valleys.
Iolo's River Valleys Series 1 aired on May 6th, 2025.
Series 1 Episodes
1. The Rheidol Valley
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. The Dyfi Valley
Iolo Williams explores the Dyfi Valley, from Ynyslas dunes and Cors Fochno bog to Ospreys at Cors Dyfi and wild Beavers near Machynlleth.
3. The Conwy Valley
Iolo explores fascinating woodlands, searches for Curlew chicks and uncovers the history of an ancient burial chamber nestled in the beautiful Conwy Valley.
4. The Vale of Clwyd
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.
