Oscar-winning Welsh actress Catherine Zeta-Jones has joined the campaign to save a farm, said to offer the best views in Snowdonia, from being modernised and developed.

Llyndy Isaf is a 614-acre farm untouched by modern intensive farming and recognised as one of the most environmentally valuable areas of land in Wales. Actor Matthew Rhys launched the campaign in March, by raising £1m to buy the farm. It is the National Trust's biggest countryside project for a decade.