Iolo's River Valleys: Full TV Schedule and Live Stream

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

Upcoming on Live TV

Upcoming Releases

Channel	Episode	Time
BBC Two Recent	Teifi Series 2 3. Teifi Iolo explores the Teifi river valley and finds a slow worm hunting, meets a coracle fisherman, is thrilled by a fishing otter and watches a pair of kestrels at their nest. ⏱ 29 mins	Your Time Wed 20 May · 18:00 UK Wed 20 May · 18:00
BBC Two Upcoming Release	Iolo's River Valleys Iolo explores the stunning Dee valley, from wintering birds along the estuary to displaying black grouse on moorland, rare freshwater-pearl mussels and spawning sea trout.	Your Time Wed 27 May · 18:00 UK Wed 27 May · 18:00

Channel

BBC Two

Recent

Episode

Teifi

Series 2 3. Teifi

Iolo explores the Teifi river valley and finds a slow worm hunting, meets a coracle fisherman, is thrilled by a fishing otter and watches a pair of kestrels at their nest.

⏱ 29 mins

Time

Your Time

Wed 20 May · 18:00

Channel

BBC Two

Upcoming Release

Episode

Iolo's River Valleys

Iolo explores the stunning Dee valley, from wintering birds along the estuary to displaying black grouse on moorland, rare freshwater-pearl mussels and spawning sea trout.

Time

Your Time

Wed 27 May · 18:00

Repeats

Channel	Episode	Time
BBC Two Recent	Iolo's River Valleys Iolo Williams explores the Tywi river valley, from Llansteffan’s coastal dunes to fallow deer ruts, ancient oak woodlands and the remote heights of the Tywi forest.	Your Time Wed 20 May · 00:40 UK Wed 20 May · 00:40
BBC Two Repeat	Iolo's River Valleys Iolo explores the Teifi river valley and finds a slow worm hunting, meets a coracle fisherman, is thrilled by a fishing otter and watches a pair of kestrels at their nest.	Your Time Tue 26 May · 23:00 UK Tue 26 May · 23:00

Channel

BBC Two

Repeat

Episode

Iolo's River Valleys

Iolo Williams explores the Tywi river valley, from Llansteffan’s coastal dunes to fallow deer ruts, ancient oak woodlands and the remote heights of the Tywi forest.

Time

Your Time

Wed 20 May · 00:40

Channel

BBC Two

Repeat

Episode

Iolo's River Valleys

Iolo explores the Teifi river valley and finds a slow worm hunting, meets a coracle fisherman, is thrilled by a fishing otter and watches a pair of kestrels at their nest.

Time

Your Time

Tue 26 May · 23:00

Available for Streaming

Series 1 4. The Vale of Clwyd

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.

Duration: 29 mins First broadcast: 6 May 2025

Availability: Available for 8 days (until 06 May 2026)

i Watch on iPlayer

Series 1 3. The Conwy Valley

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.

Duration: 29 mins First broadcast: 6 May 2025

Availability: Available for 8 days (until 06 May 2026)

i Watch on iPlayer

Series 1 2. The Dyfi Valley

2. The Dyfi Valley

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

Duration: 29 mins First broadcast: 6 May 2025

Availability: Available for 8 days (until 06 May 2026)

i Watch on iPlayer

Series 1 1. The Rheidol Valley

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.

Duration: 29 mins First broadcast: 7pm 6 May 2025

Availability: Available for 8 days (until 06 May 2026)

i Watch on iPlayer

Iolo's River Valleys FAQs

When is Iolo's River Valleys next on?

The next broadcast of Iolo's River Valleys airs at Tue 26 May · 23:00(UK: Tue 26 May · 23:00) on BBC Two.

Which channel is Iolo's River Valleys next on?

Iolo's River Valleys returns on BBC Two next. Check the listings above for every upcoming airing.

When will Iolo's River Valleys be available on iPlayer?

Episodes land on BBC iPlayer just after the show finishes airing. Use the streaming section above to jump in as soon as it drops.

View Iolo's River Valleys on BBC