Aired Wednesday 27 May, 7:00pm - 7:30pmon BBC Two

Iolo's River Valleys

Name: 12:00am - Series 2 Episode 4
Start: 2026-06-01T23:00:00Z
End: 2026-06-01T23:30:00Z
Location: BBC Two HD

Series 2 Episode 4: Dee

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

Category: Documentary / Nature
Original air date: 06/05/2026

Cast and crew

Osian GriffithsDirector
Iolo WilliamsHost

Upcoming broadcasts

Tomorrow, 12:00amon BBC Two
Series 2 Episode 4
Tomorrow, 12:00amon BBC Two HD
Series 2 Episode 4