Is Iolo's River Valleys coming back?
Iolo's River Valleys (2025–present) on BBC iPlayer
The answer: Between seasons — last episode May 6, 2026, no return date announced yet.
Watch on BritBox 
2seasons
8episodes
About Iolo's River Valleys
Iolo's River Valleys is currently airing on BBC iPlayer; the most recent episode aired on May 6, 2026.
Iolo's River Valleys is a documentary series that first premiered in 2025. It follows presenter Iolo Williams as he explores four of Wales's most stunning river valleys, from their sea mouths to their sources. The show highlights the natural beauty and wildlife of these areas, offering viewers an in-depth look at their hidden wonders.
The series features Iolo Williams as the sole presenter. Each episode has a runtime of approximately 29 minutes. As of now, the show has aired two seasons, each consisting of four episodes, with the latest episode having aired on May 6, 2026.
Iolo's River Valleys episode schedule
8 aired
Aired · 8
| Date | Ep. | Title |
|---|---|---|
| May 6, 2026 | S2·E4 | Dee |
| May 6, 2026 | S2·E3 | Teifi |
| May 6, 2026 | S2·E2 | Tywi |
| May 6, 2026 | S2·E1 | Usk |
| May 6, 2025 | S1·E4 | The Vale of Clwyd |
| May 6, 2025 | S1·E3 | The Conwy Valley |
| May 6, 2025 | S1·E2 | The Dyfi Valley |
| May 6, 2025 | S1·E1 | The Rheidol Valley |
