Am Dro! - Cyfres 10: Pennod 3 - Signed

Awn 'Am Dro' y tro hwn i Lanaelhaearn a Threfor, o Borthmadog i Fae Samson, i Riwsaeson ac i Foel Drygarn. Meurig, Hayley, Sion and Meinir lead the walks on 'Am Dro' this week.