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Series 1: 2. The Dyfi Valley
Iolo explores the Dyfi Valley, starting at Ynyslas National Nature Reserve in late spring, where ringed plovers and vibrant orchids can be found.\n\nNearby, Cors Fochno, one of Britain’s largest raised bogs, offers a rare habitat teeming with unique wildlife, including nightjars and dragonflies. At Cors Dyfi, the valley's most famous residents, ospreys, take centre stage. And near Machynlleth, Iolo has an unforgettable encounter with one of the first wild Welsh beavers in centuries.
Source: BBC 2
Most recent episodes of Iolo's River Valleys
Iolo's River Valleys
Series 2: 4. Dee
Iolo explores the River Dee, north Wales's longest river. His 70-mile journey begins along the estuary, which marks the boundary between Wales and England. Iolo visits Flint on ...
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BBC 2
Iolo's River Valleys
Series 2: 3. Teifi
Iolo explores the Teifi, known as the queen of Welsh rivers. His 76-mile journey begins at the river's mouth on Patch Beach, where it flows out to Cardigan Bay. To his surprise, ...
26-05-2026
BBC 2
Iolo's River Valleys
Series 2: 2. Tywi
Iolo heads up the Tywi river valley. His 75-mile journey begins at the coastal village of Llansteffan, where the river meets the sea under the watchful gaze of its 12th century ...
19-05-2026
BBC 2
Iolo's River Valleys
Series 2: 1. Usk
Iolo Williams explores four of Wales's longest and most varied river valleys from sea to source, uncovering their hidden wonders and remarkable wildlife, including a few special ...
11-05-2026
BBC 2
Iolo's River Valleys
Series 1: 4. The Vale Of Clwyd
Iolo Williams visits the Vale of Clwyd, one of north Wales’s most distinctive landscapes with its dramatic hills and wide valley floor. \n\nHis journey begins on the north ...
05-06-2025
BBC 2
Iolo's River Valleys
Series 1: 3. The Conwy Valley
Iolo ventures into the Conwy valley, a region rich in history and natural beauty. His journey begins along the estuary opposite the iconic Conwy Castle, where a variety of shore ...
29-05-2025
BBC 2
Iolo's River Valleys
Series 1: 2. The Dyfi Valley
Iolo explores the Dyfi Valley, starting at Ynyslas National Nature Reserve in late spring, where ringed plovers and vibrant orchids can be found.\n\nNearby, Cors Fochno, one of ...
22-05-2025
BBC 2
Iolo's River Valleys
Series 1: 1. The Rheidol Valley
Iolo explores the breathtaking Rheidol valley, starting at Aberystwyth harbour on the west coast of Ceredigion. It’s surprisingly good for all kinds of birds, including co ...
10-05-2025
BBC 2
Most popular episodes of Iolo's River Valleys
Iolo's River Valleys
Series 2: 2. Tywi
Iolo heads up the Tywi river valley. His 75-mile journey begins at the coastal village of Llansteffan, where the river meets the sea under the watchful gaze of its 12th century ...
19-05-2026
BBC 2
Iolo's River Valleys
Series 2: 3. Teifi
Iolo explores the Teifi, known as the queen of Welsh rivers. His 76-mile journey begins at the river's mouth on Patch Beach, where it flows out to Cardigan Bay. To his surprise, ...
26-05-2026
BBC 2
Iolo's River Valleys
Series 2: 1. Usk
Iolo Williams explores four of Wales's longest and most varied river valleys from sea to source, uncovering their hidden wonders and remarkable wildlife, including a few special ...
11-05-2026
BBC 2
Iolo's River Valleys
Series 2: 4. Dee
Iolo explores the River Dee, north Wales's longest river. His 70-mile journey begins along the estuary, which marks the boundary between Wales and England. Iolo visits Flint on ...
27-05-2026
BBC 2
Iolo's River Valleys
Series 1: 1. The Rheidol Valley
Iolo explores the breathtaking Rheidol valley, starting at Aberystwyth harbour on the west coast of Ceredigion. It’s surprisingly good for all kinds of birds, including co ...
10-05-2025
BBC 2
Iolo's River Valleys
Series 1: 4. The Vale Of Clwyd
Iolo Williams visits the Vale of Clwyd, one of north Wales’s most distinctive landscapes with its dramatic hills and wide valley floor. \n\nHis journey begins on the north ...
05-06-2025
BBC 2
Iolo's River Valleys
Series 1: 3. The Conwy Valley
Iolo ventures into the Conwy valley, a region rich in history and natural beauty. His journey begins along the estuary opposite the iconic Conwy Castle, where a variety of shore ...
29-05-2025
BBC 2
Iolo's River Valleys
Series 1: 2. The Dyfi Valley
Iolo explores the Dyfi Valley, starting at Ynyslas National Nature Reserve in late spring, where ringed plovers and vibrant orchids can be found.\n\nNearby, Cors Fochno, one of ...
22-05-2025
BBC 2