BBC Two 2025 - 2 seasons 8 eps Returning series

Iolo's River Valleys

2025 - 2 seasons 8 eps

Season 2

No results found

Season 1

Season 2

All episodes

29 min

S2 · E1 · May 6, 2026

Usk Episode 1

Iolo Williams explores the Usk valley, from Newport’s urban wildlife to ground-nesting birds, a huge lesser horseshoe bat roost and scarce firecrests.

29 min

S2 · E2 · May 13, 2026

Tywi Episode 2

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.

29 min

S2 · E3 · May 20, 2026

Teifi Episode 3

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 min

S2 · E4 · May 27, 2026

Dee Episode 4

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.

4 episodes in Season 2

Some details come from TheTVDB.

Iolo's River Valleys