12 Sep 2025
Y Golau: Dŵr, the highly anticipated follow-up to the acclaimed drama Y Golau, which has been filmed in Carmarthenshire, will premiere on S4C on Sunday 14 September at 9pm. The six-part series will also air on Channel 4 in the New Year.
Filming for the series began in early October 2024 and Carmarthenshire County Council has worked closely with the location scout and production teams to support the filming. The local community benefited directly from the economic opportunities created, including location fees, accommodation bookings and increased spending in local shops and restaurants.
Set in the fictional village of Llanemlyn, the new drama explores the historical impact of the Nantwen reservoir, which flooded ancient farmland in the 1960s and displaced families through compulsory purchase orders. This story reflects the controversial drowning of the Tryweryn valley and highlights the lingering effects on local communities.
In the 1990s, proposals to expand the reservoir were met with strong resistance, dividing families and friends. Now, as new expansion plans resurface, a third generation must confront the unresolved issues of the past.
Y Golau: Dŵr (Still Waters) features an impressive ensemble cast, including Sian Reese-Williams, Mark Lewis-Jones, and Robert Glenister.
Carmarthenshire County Council’s Cabinet Member for Regeneration, Leisure, Culture & Tourism, Cllr Hazel Evans said:
“We are thrilled that the time has come to witness Y Golau: Dŵr on screen. This series not only highlights the stunning landscapes of Carmarthenshire but also provided a fantastic opportunity for our local economy while the crew were here filming. We hope the series receives positive feedback and that we can welcome the production team back to Carmarthenshire for a third series.”
The first season of Y Golau premiered on S4C in May 2022 and was a ratings success. An English-language version later aired on Channel 4, featuring Joanna Scanlan, Alexandra Roach, and Iwan Rheon.
Cyngor Sir Caerfyrddin | Carmarthenshire County Council
pressoffice@carmarthenshire.gov.uk