Iolo's River Valleys - Season 2

First aired: 5/6/2026 1 episodes

Iolo Williams explores four of Wales's longest river valleys from sea to source.

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Episodes

1. Usk

Aired: 5/6/2026

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